Experts Matter. Find Yours.
Connect for media, speaking, professional opportunities & more.
Study: What makes a smell bad?
You wouldn’t microwave fish around your worst enemy — the smell lingers both in kitchen and memory. It is one few of us like, let alone have positive associations with. But what makes our brains decide a smell is stinky? A new study from UF Health researchers reveals the mechanisms behind how your brain decides you dislike — even loathe — a smell. Or as first author and graduate research fellow Sarah Sniffen puts it: How do odors come to acquire some sort of emotional charge? In many ways, our world capitalizes upon the importance of smells to influence emotions, running the gamut from perfumes to cooking and even grocery store design. “Odors are powerful at driving emotions, and it’s long been thought that the sense of smell is just as powerful, if not more powerful, at driving an emotional response as a picture, a song or any other sensory stimulus,” said senior author Dan Wesson, Ph.D., a professor of pharmacology and therapeutics in the UF College of Medicine and interim director of the Florida Chemical Senses Institute. But until now, researchers have puzzled over what circuitry connects the parts of the brain vital to generating an emotional response with those responsible for smell perception. The team started off with the amygdala, a brain region that curates your emotional responses to sensory stimuli. Although all our senses (sound, sight, taste, touch and smell) interact with this small part of your brain, the olfactory system takes a more direct route to it. “This is, in part, what we mean when we say your sense of smell is your most emotional sense,” Sniffen said. “Yes, smells evoke strong, emotional memories, but the brain’s smell centers are more closely connected with emotional centers like the amygdala.” In the study, researchers looked at mice, who share neurochemical similarities with people. They can learn about odors and categorize them as good or bad. After observing their behavior and analyzing brain activity, the team found two genetically unique brain cell types that allow odors to be assigned into a bucket of good feelings or bad feelings. Initially, the team expected that one cell type would generate a positive emotion to an odor, and another would generate a negative emotion. Instead, the brain’s cellular organization gives the cells the capability of doing either. “It can make an odor positive or negative to you,” Wesson said. “And it all depends upon where that cell type projects in your brain and how it engages with structures in your brain.” But why is knowing more about how we categorize smells important? Well, for starters, smells — and our reactions to them — are a part of life. Sometimes, however, our reactions to them can be outsized, or take on a negative association so strong it disrupts how we live. “We’re constantly breathing in and out and that means that we’re constantly receiving olfactory input,” Sniffen said. “For some people that’s fine, and it doesn’t impact their day-to-day life. They might even think, ‘Oh, odors don’t matter that much.’ But for people who have a heightened response to sensory stimuli, like those with PTSD or anxiety or autism, it’s a really important factor for their day-to-day life.” In the future, the research could help clinicians adjust for heightened sensory response that some people struggle with in their everyday lives, Wesson added. One example? A patient associating a clinic’s smell with transfusions that made them queasy. Based upon the receptor systems in these specific brain pathways, the team members believe they might be able to change those associations. Potentially, medications could suppress some of these pathways’ activity to allow you to overcome stressful and aversive emotional responses. Conversely, these pathways could be activated to restore enjoyment to things that people might have grown indifferent to — like those who lose their appetite from illness. “Emotions in part dictate our quality of life, and we’re learning more about how they arise in our brain,” Wesson said. “Understanding more about how our surroundings can impact our feelings can help us become happier, healthier humans.” This research was supported by funding from the National Institute on Deafness and Other Communication Disorders and the National Institute on Drug Abuse. Sarah Sniffen was supported by a fellowship from the National Institute on Deafness and Other Communication Disorders.
Streaks of white that coat roads and cars. Powdery footprints smudged into floors. It’s the time of year when much of the United States relies on road salt to keep ice at bay and accepts the nuisances that come with it. But beyond the inconvenience, all that salt has potentially serious, long-term effects on the environment, human health and infrastructure. Steven Goldsmith, PhD, an associate professor of Geography and the Environment at Villanova University, researches topics in watershed biogeochemistry and environmental health. A focus of his lab is the study of de-icing practices on water quality. Recently, Dr. Goldsmith shared insights from his work, exploring the widespread consequences of road salt and potential solutions to reduce its harm. Question: You have led or participated in research focused on the environmental impacts of road salt application, often locally, but with much broader implications. What have some of those studies found? Steven Goldsmith: In 2022, we published a paper showing that salt—sodium in particular—is seeping into Philadelphia's water supply, and it's timed with snow melts. We found that if you drank a glass of tap water during the peak period in the winter of 2018-19, your sodium intake would be six times what the Environmental Protection Agency (EPA) recommends within a glass of water for someone on a low-sodium diet. We are susceptible in this region because most of our water supply comes from rivers, and the rivers receive that salt runoff. Some of our findings indicate this is a chronic issue and not limited to winter months. All that contaminated shallow groundwater causes the concentration to rise year-round, even in the summer. In a recent paper, we discuss the issue of salt that lands on the side of the road. When it does, it infiltrates into soil, and then it goes into shallow groundwater before entering our streams. Oftentimes when salt is applied to the road and you receive that initial precipitation, you are left with runoff with salinity near the concentration of sea water, which is very bad for freshwater organisms. Q: Have those studies found other impacts beyond those created directly by sodium? SG: It’s certainly not just a sodium issue—it's also a chloride issue. Chloride does have a negative impact on aquatic organisms, but it can also corrode drinking water infrastructure. If you have lead pipes in that infrastructure, that can lead to a range of human health issues. Even just to prevent those problems, applying chemicals to protect from the corrosion of pipes increases costs. Perhaps the worst part is when road salt infiltrates shallow soil and groundwater, the sodium is left behind preferentially in soils because it's displacing other positively charged elements, which could then go into groundwater. The elements it replaces are metals. If we have more salt runoff on the side of the roads, chances are, if we look in those streams, we are going to see higher concentrations of heavy metals like copper, zinc and even lead. Q: You have mentioned the efficacy of brine. What is brine and why is it more effective than traditional road salt? SG: If you’ve ever driven behind a rock salt truck, you probably noticed it pelts your windshield and shoots salt everywhere. A lot of that rock salt ends up following the natural trajectory of the road, which is designed to drain towards the sides to keep water from pooling. As soon as a snowstorm happens, it's going to melt and flow into the storm drain. That, of course, is bad for the environment, but also doesn’t help remove ice from the road. With brine, the application is a diluted road salt with water mixture that is usually about 23 percent sodium chloride by volume, and it’s referred to as an “anti-icing” measure. The saltwater infiltrates the top layer of pavement and embeds in the roadway itself, which keeps ice from crystallizing when snow or water hits the surface. To use an analogy, let’s say you have a large rock that you placed on top of the pavement, but you also have a quarter of that rock’s volume in sand. If you put that sand onto the pavement, it will permeate into nooks and crannies. That's the same idea here: use less material and in a way that makes it stick better to the surface and reduces the need to reapply as often during and after storms. Q: What are potential positive impacts if municipalities switch from road salt to brine? SG: There are limited studies on this, but it's been shown that if done properly, brining can reduce salt runoff into streams by anywhere from 23 to 40 percent. If it's 40 percent, you have almost cut the problem in half, and that lower peak salt concentration and runoff would have a profound positive impact on aquatic organisms that are downstream. From a cost standpoint—and I say this theoretically because there are other up-front costs associated with brining at the municipal level—if you reduce salt concentrations by up to 40 percent it means you apply a lot less and therefore spend a lot less. Q: What can individuals do to decrease road salt runoff, and how much of an impact does individual use have? SG: We can start by addressing the household salt application problem. Another one of our recent papers suggests that other impervious surfaces, like driveways, sidewalks and parking lots, are probably contributing even more than the roadway application. The best estimate is that individual or private contractor use could be over 10 times what you see on roads. For researchers, part of addressing this is trying to understand why people apply so much salt on their personal properties: are they afraid of lawsuits? Keeping with the Joneses? Are they not aware of ordinances that say you have to shovel within a certain number of hours, which would negate the need for salt anyway? For homeowners and other individuals, one proposed solution is to use a coffee mug’s worth of salt for every 10 sidewalk squares. Think of it as a “low-sodium diet” to make sure you’re not overapplying. It’s a way we can limit our use of salt and do so in a way that doesn't jeopardize safety. These individuals can also sweep up salt applied before a storm that never materialized to use before the next one. This will prevent the possibility of rain needlessly dissolving the salt. Q: Are there effective alternatives to road salt that individuals can use? SG: The only truly effective alternative, unfortunately, is simply using less road salt. While some people apply sand, it also washes into local streams, causing environmental harm. Another option that has gained attention is beet juice—what I like to call the “Dwight Schrute” solution. Beet juice actually works better than road salt because its organic acids prevent ice from crystallizing at temperatures much lower than those at which rock salt is effective. However, from an environmental standpoint, beet juice contains high levels of nutrients, which can contribute to algae growth if it enters waterways. Additionally, recent studies suggest it may also be toxic to aquatic organisms. The growing consensus is that while some road salt is necessary, we need to use less of it.
How Higher Ed Should Tackle AI
Higher learning in the age of artificial intelligence isn’t about policing AI, but rather reinventing education around the new technology, says Chris Kanan, an associate professor of computer science at the University of Rochester and an expert in artificial intelligence and deep learning. “The cost of misusing AI is not students cheating, it’s knowledge loss,” says Kanan. “My core worry is that students can deprive themselves of knowledge while still producing ‘acceptable work.’” Kanan, who writes about and studies artificial intelligence, is helping to shape one of the most urgent debates in academia today: how universities should respond to the disruptive force of AI. In his latest essay on the topic, Kanan laments that many universities consider AI “a writing problem,” noting that student writing is where faculty first felt the force of artificial intelligence. But, he argues, treating student use of AI as something to be detected or banned misunderstands the technological shift at hand. “Treating AI as ‘writing-tech’ is like treating electricity as ‘better candles,’” he writes. “The deeper issue is not prose quality or plagiarism detection,” he continues. “The deeper issue is that AI has become a general-purpose interface to knowledge work: coding, data analysis, tutoring, research synthesis, design, simulation, persuasion, workflow automation, and (increasingly) agent-like delegation.” That, he says, forces a change in pedagogy. What Higher Ed Needs to Do His essay points to universities that are “doing AI right,” including hiring distinguished artificial intelligence experts in key administrative leadership roles and making AI competency a graduation requirement. Kanan outlines structural changes he believes need to take place in institutions of higher learning. • Rework assessment so it measures understanding in an AI-rich environment. • Teach verification habits. • Build explicit norms for attribution, privacy, and appropriate use. • Create top-down leadership so AI strategy is coherent and not fractured among departments. • Deliver AI literacy across the entire curriculum. • Offer deep AI degrees for students who will build the systems everyone else will use. For journalists covering AI’s impact on education, technology, workforce development, or institutional change, Kanan offers a research-based, forward-looking perspective grounded in both technical expertise and a deep commitment to the mission of learning. Connect with him by clicking on his profile.
Gene Editing Breakthrough Offers New Hope for Head and Neck Cancer Patients
Researchers at the ChristianaCare Gene Editing Institute have made an important advance in treating head and neck cancers. By using CRISPR gene editing, the team found a way to restore how well chemotherapy works in tumors that have stopped responding to treatment. Their results, now published in Molecular Therapy Oncology, could change how doctors treat these aggressive cancers and give new hope to many patients who face limited options. Head and neck cancer is the seventh most common cancer worldwide, and cases are expected to rise by 30 percent every year by 2030. Even with progress in surgery, chemotherapy and immunotherapy, many patients still reach a point where treatment no longer works. The ChristianaCare team aimed to solve this challenge at its source. Targeting the Heart of Drug Resistance The researchers focused on a gene called NRF2. This gene acts like a master switch that helps cancer cells survive stress and resist chemotherapy. Because NRF2 plays such a central role in tumor growth, the team chose to develop a genetic therapy that disables the gene itself rather than targeting a single protein, which is common in traditional drug development. Since NRF2 is a transcription factor, shutting it down in a lasting way is more likely to succeed through CRISPR gene editing. Their major advance was showing that CRISPR can successfully disrupt NRF2 in head and neck cancer cells and in esophageal cancer cells. This work builds on earlier studies in lung cancer, where blocking NRF2 made tumors more sensitive to chemotherapy and improved survival in animal models. “Our goal was to break through the wall of drug resistance that so many patients face,” said Natalia Rivera Torres, Ph.D., the study’s lead author. “By precisely editing the NRF2 gene, we can make cancer cells vulnerable again to standard treatments. This could improve outcomes and quality of life.” Precision Matters: The Power of Target Choice The study also showed that the location of the CRISPR cut within the NRF2 gene makes a big difference. The strongest results came from targeting exon 4, a part of the gene that controls a key section of the NRF2 protein. Editing this region reduced NRF2 levels by 90 percent and made cancer cells much more sensitive to chemotherapy. In comparison, editing exon 2 was less effective even though it still caused high levels of gene disruption. The team also found that a process called exon skipping, where sections of genetic code are rearranged, can affect the outcome of gene editing. This discovery highlights how important careful design and testing are when building gene editing therapies. A Platform for Broader Impact ChristianaCare researchers saw the same results in both head and neck cancer cells and esophageal cancer cells. This suggests the strategy could help treat many solid tumors that have high levels of NRF2 and are known for strong drug resistance. “This is more than just a single experiment,” said Eric Kmiec, Ph.D., director of the Gene Editing Institute and senior author of the study. “We are building a platform that can be adapted to different cancers. Our earlier work in lung cancer showed the promise of this approach, and now we see it working in other hard to treat tumors. It is an exciting step toward making gene editing a meaningful part of cancer treatment.” Looking Ahead: Toward Clinical Application With these strong results, the team is now focused on finding the safest and most effective way to deliver the gene editing tools directly to tumors. Their goal is to reduce how much standard treatment a patient needs in order to get the best result with fewer side effects. “Drug resistance is one of the biggest challenges in cancer care,” Rivera Torres said. “If we can overcome it with gene editing, we could give patients more time, better quality of life and a renewed sense of hope.” Kmiec added, “We are committed to moving this technology forward quickly while always keeping the patient in mind. The future of cancer treatment is personal, precise and, we believe, within reach.”
One year ago, after a campaign that toppled Bashar al-Assad's repressive dictatorship, Ahmed al-Sharaa assumed the Syrian presidency. Since then, the former rebel commander has worked to establish his credentials as a statesman, winning the support of regional powers like Türkiye, Saudi Arabia and Qatar—as well as recognition from the White House. Yet al-Sharaa and his transitional government have not been immune from criticism, particularly over their handling of domestic affairs. Samer Abboud, PhD, director of the Center for Arab and Islamic Studies at Villanova University, is an expert on modern Syria and the wider Middle East. A year into al-Sharaa's presidency, he believes the provisional government has made incredible strides in some areas, like international diplomacy, while struggling to find its footing in others. "There's no doubt that Syria's external image is becoming more positive. We see this kind of charm offensive, with President al-Sharaa taking to the world stage," says Dr. Abboud. "Also, most of the regional actors are very fond of al-Sharaa and were very happy for the Assad regime to have fallen. So, there's this external presentation of a transition government that is legitimate and has support, and I think that's largely true. "The problem in Syria right now, of course, is what's happening internally. To begin, across the country, you have completely collapsed infrastructure—limited electricity, restricted access to running water and unreliable internet." Much has been made of economic sanctions' role in contributing to these internal issues, with Western governments having historically limited the amount of aid and investment that could enter Syria. However, while Dr. Abboud sees these measures' elimination as crucial to the nation's progress, he also contends that ending restrictions alone is not enough to ensure the country's long-term stability and prosperity. Of particular concern, according to the professor, is the al-Sharaa administration's persistent claim "that 'free markets' could and would be a cure-all." As he explains, "The problem is that there's literally no evidence to demonstrate that private enterprise is interested in social betterment in reconstruction cases. You can't rebuild a state and a society on the profit logic. When you look at Lebanon, after all the wars Lebanon endured, what did free markets—without a strong public sector—do for that country? Roughly 80 percent of Lebanese people live in poverty." Beyond the troubles surrounding economic growth and infrastructural development, there also exist a series of fractures along ethnic and ideological lines. Wide swaths of Syria are currently controlled by militias with agendas at odds with that of the provisional government, and despite making inroads with one significant bloc of dissent (the Kurdish-led Syrian Democratic Forces), tensions are exceedingly high. Furthermore, a number of groups remain suspicious of the president and his intentions due to his past affiliation with Hayat Tahrir al-Sham, a Sunni Islamist group that traces its roots to al-Qaeda. Navigating this delicate situation with poise and precision is something that al-Sharaa needs to master, contends Dr. Abboud. And, over the course of the past several months, it seems Syria's new leader has started to refine the skill. "To illustrate, last year, at least 25 people were killed in a bombing at the Mar Elias Church in Damascus, and President al-Sharaa did not go to the site. In addressing the incident, he also didn't use the language of martyrdom, which is what you would typically do for any person—Christian or Muslim—who died in this context," says Dr. Abboud. "In June, however, they arrested the culprits, and he went and met the patriarch and went inside the church, and they publicized it. "The first time, he was too worried about these internal influences—of being perceived by his base as having moderated his views. Right now, he very much finds himself caught in a balancing act, working to temper the forces that are compelling him to possibly do something that could worsen an unstable situation. But I do think that the two contrasts [represented in the Mar Elias Church episode] suggest that the president is learning and gradually figuring out how to do politics a bit differently." In this vein, Dr. Abboud feels the next phase in al-Sharaa's evolution should center on reckoning with the history of the country's late civil war and encouraging a dialogue between those who supported the Assad regime and those who sought to overthrow it. In the professor's estimation, this step is essential to achieving a lasting peace in Syria. "Currently, there are some memory projects and knowledge projects that are happening, but those are not led or facilitated by the state. And that's troublesome, given what we've seen in other conflict contexts," he says. "In Lebanon, for instance, the state has amnesia. The civil war is not in the textbooks, officials don't talk about it, and it's not commemorated nationally. But then, in many ways, the narrative of how it happened—who are the victims, who are the perpetrators—can totally shape people's lives." Still, while much economic, social and humanitarian work remains to be done, Syria today finds itself in a position unlike any it's occupied in decades' time: one marked by possibility. "In general, I envision an extended period of grace for the government and an extended period of hope," concludes Dr. Abboud. "Syria did not have a future under the Assad regime. Or it had a future, but one characterized by generations of isolation. Today, people, both inside and outside Syria, have an entirely different outlook."
Professor Ian Maidment is a professor in clinical pharmacy at Aston Pharmacy School His inaugural lecture will explain why patients struggle with taking medication and present possible solutions to the problem Professor Maidment is a former practising pharmacist and an expert in medication optimisation and management in mental health and dementia. Professor Ian Maidment, professor in clinical pharmacy at Aston Pharmacy School, will give a public lecture about his life’s work on 5 February 2025. In his inaugural lecture, Professor Maidment will reflect on his journey from a childhood in Kent to becoming a leading researcher in clinical pharmacy. After more than two decades working in the NHS, in community pharmacy, mental health, dementia care, and leadership roles, he joined Aston University in 2012. His research focuses on the real-world challenges of medication optimisation for patients, carers, and healthcare professionals. The title of Professor Maidment’s lecture is ‘Medication adherence: Why it matters and how we can improve it’. Every year, the UK spends nearly £21 billion on medicines. Yet up to half of people with long-term conditions do not take their medication as prescribed—a problem known as non-adherence. This has profound clinical consequences and significant financial implications for the NHS. Professor Maidment will draw on his experience to explore how factors such as medication burden and side-effects influence adherence, the challenges posed by conditions such as dementia and severe mental illness, the role of pharmacy in supporting adherence and why tackling non-adherence requires a system-wide approach. He will also offer practical solutions to one of healthcare’s most persistent problems. Professor Maidment said: “We need to understand why patients struggle to take their medication and then develop and test solutions that work well.” The lecture on Thursday 5 February 2026 will take place at Aston Business School. In-person tickets are available from Eventbrite. The public lecture will begin at 18:00 GMT with refreshments served from 17:30 GMT. It is free of charge and will be followed by a drinks reception. The lecture will also be streamed online.
Baby, It's Cold Outside… And That's No Joke for Seniors
How cold is it? • It's so cold I saw a dog stuck to a fire hydrant. • It's so cold my words froze mid-air and my neighbour had to thaw them out to hear what I said. • It's so cold, I just saw a politician with his hands in his own pockets. Okay, I'm joking—but just a bit. Because while I enjoy a good cold-weather quip, hypothermia isn't funny. Currently, this severe Arctic blast is gripping Canada and large parts of the United States, dropping temperatures 20–40°F (11–22°C) below seasonal norms across a 2,000-mile stretch of North America. Nearly 80 million people are under winter storm warnings. Power outages are anticipated. Roads could be impassable. Travel is about as appealing as a root canal in a snowstorm. For many seniors on both sides of the border, this isn't just an inconvenience—it's a real safety risk. The Cold, Hard Stats (Brace Yourself) Looking at the research I couldn't believe what I found: Older adults are more than 5x as likely to die from hypothermia as younger adults (Kosatsky et al., 2015). In the U.S., approximately half of all hypothermia deaths are people over 65 according to data from the CDC. In Canada, adults over 75 are more than 5 times more likely to die from hypothermia than younger adults—and 87% of those deaths happen right in their own homes. (StatsCan Health Infobase ) Read that again. Slowly. Not on frozen lakes. Not stranded on highways. Instead, in familiar living rooms. Sitting on well-worn couches. Beneath afghans crocheted by someone who loved them. Why Your Body Becomes a Cold -Weather Traitor Our bodies change as we age, and not in the fun "I've earned every wrinkle" way. The insulating fat layer under the skin thins. Circulation slows. Metabolism drops like your interest in small talk. Certain medications—prescription and over-the-counter cold remedies—can interfere with temperature regulation and awareness. Your body's thermostat? It's on the fritz. Here's the math: Hypothermia doesn't require a blizzard. It can begin indoors when temperatures fall below 65°F / 18°C. And here's the truly dangerous part: hypothermia affects the brain first. Judgment declines before shivering becomes severe. You don't realize you're in trouble. You just feel "a bit chilly" while your core temperature quietly drops. Stop Acting Your Age! (But Also... Dress as if you know your age) I'm all for embracing life at every stage—hiking to Everest Base Camp at 60-something, teaching Zumba, and that MBA thing at 70, refusing to "act your age." But embracing life in this weather requires wisdom, not bravado. Cold weather brings real risks: • Slips and falls on icy surfaces (and no, we don't bounce like we used to) • Increased risk of heart attack and stroke because cold thickens the blood • Respiratory infections that linger far too long • Frostbite on fingers and toes • Hypothermia that clouds thinking before any alarms sound. The Indoor Survival Guide—Keep Up (Yes, You Can Get Hypothermia at Home) Set the thermostat to at least 68–70°F (20–21°C). This is not a time to be a miser. Heating bills can be expensive, but hospital stays are even more costly. And they don't even give you warm blankets anymore. Layer like a pro. This is not the time for fashion minimalism. Think: • Long underwear or thermal leggings • Pyjamas under clothes • Stockings or tights under pants • Two pairs of socks • Warm boots with good tread (essential for any outdoor ventures) • Shirts layered under sweaters When it's this cold, if you still own leg warmers—congratulations. Wear them. The warmth is worth the call from the '80s asking for them back. Hats indoors are permitted. This isn't a fashion show; it's survival style. You lose a lot of body heat through your head. Emulate your inner Elmer Fudd if you need to. Carbon monoxide alarms are essential & in many areas legally required. When temperatures drop, people get creative—and desperate. Space heaters, fireplaces, generators, kerosene heaters, or (please, dear God, don't) using gas ovens for heat. That last one is about as safe as texting while skydiving. And here's an important PSA: Starting January 1, 2026, Ontario's updated fire code mandates a functioning carbon monoxide alarm on every level of homes that have fuel-burning appliances. Remember to test alarms when you change your clocks for daylight saving time—it's easy to do, and not easy to forget. Block drafts like you're defending a castle. Roll towels under doors, seal windows, close unused rooms, open curtains during sunny days, and close them tightly at night. Check your medications. Ask your pharmacist or doctor if any prescriptions or over-the-counter remedies influence temperature regulation or alertness. Knowledge is power—and warmth. Check Food & Other Supplies. If venturing out feels risky, order groceries for delivery. Services like Voilà by Sobeys, Instacart, PC Express, and many local grocers deliver directly to your door. This isn't laziness—it's smart risk management. Most delivery services are free or inexpensive, especially when compared to the alternative: icy sidewalks, falls, broken hips, or getting stranded in extreme cold while wearing inadequate footwear because "it's just a quick trip." Clear Your Snow. Snow and ice hinder movement. Limited movement results in isolation. Isolation worsens depression and cognitive decline. Clear snow isn't just about safety—it's about dignity. Pro Tip: Protect Your Pipes (and Your Wallet). Winter power outages can mean burst pipes and serious water damage. If you expect a prolonged outage: • Know where your main water shut-off is • Turn it off • Open faucets to drain the lines It feels extreme—until it doesn't. Until you're standing in three inches of water at 2 a.m., wearing your emergency leg warmers. Know or Live Near an Older Adult? Here's Your Cold Weather Action Plan Don't ask if they need help—just do it. Clear the porch. Shovel a path. Salt the steps. Think of it as the winter cousin of snow angels: shovel angels. Be one! When people Are Shut In—Go check in with them. For those stuck indoors, reach out by video, not just text or voice. Seeing someone tells you far more than hearing "I'm fine." Use FaceTime, Zoom, WhatsApp, or Google Meet. Do this with older people you know. Because pride prevents people from asking for help. Shame prevents people from being honest—about empty fridges, sleeping in mittens, or wearing coats to bed. Look for these signs: • Confusion or slurred speech • Shivering—or lack of it (paradoxically dangerous) • Pale or bluish skin • Slow movements or lack of coordination • Extreme fatigue Know When to Call for Help If something feels off, err on the side of safety. In Canada: • Telehealth Ontario: 1-866-797-0000 • Quebec: 811 • Other provinces: Know your local health line If you notice any signs of distress—confusion, chest pain, shortness of breath, severe cold exposure—or if you're unsure, call 911. Cold-related emergencies escalate rapidly. The Culture Shift We Need—Right Now Cold snaps reveal faults in our systems and communities. This is the time to foster a check-in culture: a call, a knock, a cleared walkway, groceries dropped at the door. Preparation matters. Connection matters more. Winter is temporary. The habits we build to take care of one another are not. Be cool—and stay warm out there, friends. Sue Don’t Retire… Rewire! What are your best winter safety tips? Share them—because staying warm is better when we do it together. Want more of this? Subscribe for weekly doses of retirement reality—no golf-cart clichés, no sunset stock photos, just straight talk about staying Hip, Fit & Financially Free.
Natural defenses: UF researchers use living infrastructure to protect Florida’s shores
Armed with a $7 million grant from the Army Corp of Engineers, University of Florida researchers are working to bolster shoreline resilience and restore troubled wetlands in St. Augustine through nature-based solutions. “The idea of nature-based solutions is to build what we sometimes refer to as green infrastructure, to use living, natural components as the building blocks,” said Andrew Altieri, Ph.D., an assistant professor with the Engineering School of Sustainable Infrastructure & Environment and interim director of the Center for Coastal Solutions, also known as CCS. Instead of building man-made structures to protect wetlands, for example, restoration crews can move dredged natural sediment otherwise destined for costly disposal to increase wetlands’ size and elevation, restoring their ability to protect shorelines from storm surge, keep pace with sea-level change, filter toxins, store carbon and provide habitats for wildlife. The project is in concert with the Army Corps of Engineers’ goal to naturally reuse and repurpose at least 70% of dredged sediment into other natural areas to benefit habitats and restoration by 2030. “It is critical to understand, test and model how natural processes can be harnessed and strategically implemented to sustainably meet the challenge of rapidly intensifying coastal hazards while also providing environmental, economic and social benefits,” Altieri wrote in the project’s technical summary. Overall, the multi-disciplinary project closely examines patterns and processes of change in coastal landscapes. That includes wetlands — marshes and mangroves — and beach/dune systems. The project comes as these coastal areas are facing threats both natural and human. These areas are essential to wildlife, air quality, native vegetation, storm protection and the overall health of the ecosystem. A 2008 study by the U.S. Fish and Wildlife Service reported a net loss of about 361,000 acres of wetlands in the coastal watersheds of the eastern United States between 1998 and 2004 — an average net decrease of 59,000 acres each year, with experts citing sea-level rise as one of the primary factors. “We're trying to understand the patterns of that loss and what's leading to it,” Altieri said. “These systems are essentially the first and sometimes last line of defense against coastal hazards, risks that include storm surges and coastal flooding. They are forming a buffer, this kind of protective layer on our coast. But they're changing, generally for the worse and are in danger of being lost.” With this project, the CCS-led research team plans to advance the science, technology and engineering principles of nature-based solutions. With marshes, the primary concern is elevation loss, which can drown the vegetation critical to the ecosystem. They are sinking, eroding and succumbing to sea-level changes, Altieri said. “The plants are really important for trapping sediment and holding sediment,” he said. “You lose some of the plants, then you get more erosional loss and a lack of the accumulation of sediment.” Sediment is natural muck on the bottom of water bodies. “If we can add sufficient sediment to increase the elevation to a level where the plants thrive, then they will retain that sediment that's been added to hopefully trap more sediment and accumulate more biomass through their growth,” Altieri said. “It’s something that may need to be done periodically. You may stop that decline, but you may even reverse the process of loss and change the trajectory.” As a bonus, this process saves the cost of disposing of dredged sediment, which is usually piped offshore or to a materials-management area. This project is the next step for CCS-led coastal resilience efforts in St. Augustine. In 2024, CCS and WSP Environment & Infrastructure Inc. launched a coastal wetlands-restoration project to keep pace with sea level change and erosion. The 2025 work is a standalone project with separate funding, Altieri said. The current project also has more research disciplines and project partners, including UF researchers from Landscape Architecture, Geological Sciences and the School of Forest, Fisheries and Geomatic Sciences. “Storm surges, wave energy, coastal flooding – all of that can be slowed or reduced because of wetlands,” Altieri said. “They are basically like shock absorbers. These wetlands, beaches and dunes can be lost or eroded to some degree, but the upland area behind them is essentially protected.” Researching the resilience of dunes comes with a different set of dynamics. Here, they are looking at the plants that support the dunes – sea oats and panic grass, for example. That vegetation also provides a habitat for animals such as beach mice, turtles and birds. On the beach, the team also is looking at water energy and how grain size affects the stability of dunes. “It’s understanding water movement, water energy. How is that interacting with depositing sediment, moving sediment around, sorting sediment? With water, you tend to carry finer particles further than coarser materials,” he said. What does success look like after the award’s five years end? “We'll have an understanding of what's changing on our coasts and why,” Altieri said. “We'll have an understanding of how we can work within this system to modify the natural components and utilize the natural processes. And we will hopefully be working with partners through additional funding mechanisms to actually apply that towards implementation of solutions to increase coastal resilience.” The team also includes Peter Adams, Department of Geological Sciences; Julie Bruck, Department of Landscape Architecture, School of Landscape Architecture and Planning; Maitane Olabarrieta, ESSIE; Alex Sheremet, ESSIE; Nina Stark, ESSIE; Ben Wilkinson, Geomatics Program, School of Forest, Fisheries, and Geomatics Sciences; and Xiao Yu, ESSIE.
Florida scientists champion ‘Food Is Medicine’ movement to tackle national health crisis
University of Florida researchers are calling for a national transformation in how we address the ongoing epidemic of obesity and Type 2 diabetes, starting with a fundamental shift in how we approach health, agriculture and food. Published recently in the Proceedings of the National Academy of Sciences, the article argues that fruits and vegetables must be treated not just as food — but as medicine. With 73% of U.S. adults and 35% of children classified as overweight or obese, the authors warn that the crisis is not only an individual health issue but a national economic and security threat. Andrew Hanson, Ph.D., a co-author and professor of horticultural sciences at UF/IFAS, emphasized a sense of urgency and collective responsibility toward solving this health crisis. “This isn’t business as usual. We’re taking a public-interest view. This is the kind of thing we all need to be talking about. It’s too important not to,” he said. The article proposes a roadmap for change, including creating five National Institutes of Health-supported “Food Is Medicine” centers across the U.S., with Florida as a leading candidate; scaling up domestic fruit and vegetable production to meet national dietary needs; partnering with food producer and processors to make healthy foods more accessible, affordable and appealing; and reforming medical and nutrition education to include horticultural sciences and vice versa. The article highlights that only 1 in 10 adults meets the recommended daily intake of fruits and vegetables, and that U.S. production falls far short of what’s needed to support a healthy population. The authors call for a dramatic expansion of fruit and vegetable production, especially high-impact crops like berries, leafy greens and carrots. Christopher Gunter, Ph.D., professor and chair of the UF/IFAS Department of Horticultural Sciences, said the team’s goal is to push the role fruit and vegetables crops can play in improving human health into the national consciousness. “As a discipline, horticulture and the science of fruit and vegetables have been largely ignored in this conversation,” Gunter said. “Our goal is to move the needle on health with fruit and vegetables.” Hanson said about 80% of the nation’s cropland is used to grow soybeans, corn and wheat — most of which are processed into products with low nutritional value that contribute to the obesity and Type 2 diabetes epidemic. Mike Jaffee, M.D., a co-author and professor of neurology in the UF College of Medicine, stressed the broader implications of a high-vegetable diet on brain health. “Obesity and insulin resistance are linked to inflammation and neurodegeneration. We’re living longer, but our brains aren’t keeping up. That’s where the real cost to individuals and the health care system comes in,” he said. Gunter agreed, adding, “This epidemic reduces the longevity and productivity of our citizens. It limits the momentum communities need to grow healthy and resilient families.” Hanson pointed out that higher socioeconomic groups are better positioned to meet dietary recommendations, making this not just a health issue, but a deeply embedded social and economic one. “This crisis takes an unduly large toll on people with lower incomes and less time. To eat enough fruits and vegetables in the current system, you need substantial income and time to prepare food. That’s a luxury many don’t have,” he said. The authors argue that farmers bring essential knowledge to the table. “They understand how environmental factors impact nutritional quality,” Gunter said.
How to Make Your Experts “AI-Ready"
AI is changing how people discover expertise. Today, journalists, event organizers, researchers, and the public increasingly turn to tools like ChatGPT, Claude, Perplexity, and Google Search’s AI summaries powered by Gemini. Instead of clicking through pages of links, they expect clear, credible answers—often delivered instantly, with citations. That shift has major implications for organizations. It’s no longer enough for your experts to “rank well.” They need to be understood, trusted, and accurately represented by AI systems. So the real question becomes: When AI talks about your experts, does it get it right? This is where LLMs.txt plays an important role—especially when paired with an ExpertFile-powered Expert Center. What is LLMs.txt (In Plain English)? ...and why is it essential for expert content LLMs.txt is a small, machine-readable file placed on your organization’s website—in the case of your expert content alongside your main Expert Center. Its purpose is simple: to explain your expertise to AI systems clearly and unambiguously. “AI systems don’t just scan for keywords; they look for clear meaning, consistent context, and clean formatting — precise, structured language makes it easier for AI to classify your content as relevant.” Microsoft: Optimizing Your Content for Inclusion in AI Search Answers Rather than forcing AI to infer meaning from scattered pages, LLMs.txt explicitly tells systems: Who your experts are Which pages represent official, curated content How expert profiles differ from articles, Q&A, or research content How your organization’s expertise should be interpreted as a whole Think of it as a table of contents and usage guide for AI —helping large language models understand your site the way a communications professional would. Why This Matters for Visibility and Trust It Establishes Your Organization as the Source of Truth AI systems routinely synthesize information from multiple places. Without guidance, they may rely on outdated bios, scraped content, or secondary references. LLMs.txt provides a clear signal: This is our official expert content. This is what represents us. For ExpertFile clients, this matters because the platform already centralizes and curates expert content—from profiles and directories to Spotlights and Expert Q&A—ensuring that what AI sees is current, governed, and institutionally endorsed. The result: Greater accuracy, stronger attribution, and reduced risk of misrepresentation when your experts appear in the ever growing AI-generated overviews and answer. ahrefs: AI Overviews Have Doubled How It Improves Discovery Across AI Platforms It Makes Structured Expertise Easier for AI to Use ExpertFile is purpose-built to publish structured expert content at scale—content that goes well beyond static bios. LLMs.txt simply helps AI recognize and use that structure correctly. It clarifies the role of key ExpertFile content types, including: Expert Profiles → Canonical identity, credentials, and areas of expertise Spotlight Posts → Timely commentary, thought leadership, and research insights Expert Q&A → Authoritative answers to real-world questions Directories, Research Bureaus, and Speakers Bureaus → Curated collections of expertise by topic or audience This makes it easier for AI systems to: Match your experts to breaking news and trending topics Pull accurate summaries for AI-generated responses Identify the right expert for journalists, event organizers, and researchers Combined with ExpertFile’s extended distribution through expertfile.com and the ExpertFile Mobile App, your expertise is not only published—but actively discoverable across channels used by key audiences . How It Builds Organizational Authority It Connects Individual Experts to Institutional Credibility Without context, AI may treat expert pages as isolated profiles. LLMs.txt helps connect the dots. It tells AI that: Your experts are curated and endorsed by the organization Their insights are part of a broader expertise ecosystem Your institution has depth across priority subject areas This aligns closely with how ExpertFile structures content to support E-E-A-T (Experience, Expertise, Authority, Trust)—not just at the individual level, but across the organization . The outcome: Your organization is recognized not just as a collection of experts, but as an authoritative source of knowledge. How It Works with Google, Gemini, and AI Search Supports AI Summaries, Citations, and Knowledge Panels LLMs.txt helps ensure that when Google’s AI: Summarizes your organization Cites expert commentary Builds “about this topic” panels …it draws from your official, structured ExpertFile content, rather than fragmented third-party sources. This complements ExpertFile’s existing SEO and AI-discoverability foundation, which includes clean code, proper meta data, schema markup, and frequent crawling by both search engines and AI bots. How LLMS.txt Fits with SEO, Meta Tags, and Schema LLMS.txt doesn’t replace SEO—it builds on it. Traditional SEO elements such as page titles, meta descriptions, schema.org markup, and internal linking remain essential for helping search engines index and rank your content. ExpertFile already delivers these fundamentals out of the box, continually testing and evolving SEO and GEO (Generative Engine Optimization) standards as search changes . “Semantic SEO helps search engines understand context... it now helps bridge a critical gap between traditional SEO and newer generative engine optimization (GEO) and AI optimization (AIO) efforts.” Search Engine Land: Semantic SEO: How to optimize for meaning over keywords LLMS.txt adds a layer designed specifically for AI systems: Schema explains individual pages LLMs.txt explains your entire expertise ecosystem In simple terms: SEO helps your content get found LLMs.txt helps AI understand, summarize, and cite it correctly Together, they ensure your experts are not only visible—but accurately represented wherever AI is shaping discovery. Why This Is Especially Powerful on ExpertFile ExpertFile was designed to future-proof expert visibility—offering structured publishing, governance, distribution, inquiry management, analytics, and professional services as part of a continuously evolving SaaS platform . LLMS.txt acts as a multiplier on that foundation: Turning your Expert Center into a machine-readable expertise hub Strengthening AI discovery without adding operational burden Supporting emerging use cases like automated expert matching and AI-assisted research It’s not about chasing new technology. It’s about ensuring your expertise is clearly defined, properly attributed, and trusted—now and in the future. The Takeaway An LLMs.txt file on your ExpertFile organization page helps ensure that: Your experts are found by AI tools, not overlooked Your content is interpreted correctly, not flattened or misrepresented Your organization earns authority and trust in AI summaries, citations, and search results “AI search isn’t eliminating organic traffic. But it is reducing visits to source websites… Measure presence (citations, mentions) alongside traffic to see real impact.” Semrush: AI Search Trends for 2026 & How You Can Adapt As AI becomes the front door to information, LLMs.txt helps make sure that when people ask for expertise, your organization is the answer they get.
