health and wellness
Heat and cold as health hazards
Research shows that both heat waves and cold temperatures significantly stress the cardiovascular system, impacting health amid current climate and energy crises.
Last Updated on December 28, 2024 by Daily News Staff
Newswise — Both hot and cold environments trigger a stress response in the human body and can lead to cardiovascular problems. Physiologist Justin Lawley from the Department of Sport Science at the University of Innsbruck and colleagues have recently investigated both factors in scientific studies. The results, which were published in the Journals Scientific Reports and Experimental Physiology, are especially interesting in light of the current multiple global crises.
The climate and energy crises are currently among the greatest challenges of our time and are having a direct physical effect on people’s health. For example, the climate crisis is causing more frequent, longer and more intense heat waves, which are responsible for more deaths than natural disasters. Moreover, the energy crisis is causing a rise in energy costs and forcing many households to heat their homes less often or not at all.
The physiological responses to a simulated heat wave and cold ambient temperatures have now been investigated by Justin Lawley, together with his research group, the Laboratory of Exercise and Environmental Physiology, and international scientists in two studies – the focus was on the cardiovascular system. “In both studies, we replicated real-world environmental temperatures the body might be exposed to and were able to show physiological responses that could help explain known seasonal variations in cardiovascular deaths,” explains Lawley.
Heat study
As part of the Horizon 2020 Heat Shield project, Lawley’s group collaborated with colleagues from Slovenia to examine how heat waves affect the health of industrial workers. Seven male participants spent nine consecutive regular workdays in a controlled laboratory setting.
On the first and last three days, normal summer temperatures for Central European conditions ranged from 25.1 to 25.7 degrees during work and 21.8 to 22.8 degrees during rest periods. Days four through six represented the heat wave; during this period, researchers created ambient temperatures between 35.2 and 35.8 degrees during work periods and 25.5 to 27.1 degrees during rest periods including while sleeping at night. During the entire study, participants completed daily tasks to simulate typical industrial work.
“We used a protocol in this study that simulates current heat wave conditions in combination with orthostatic stress, which means changing posture, to determine cardiovascular and thermoregulatory stress in industrial workers,” Lawley describes. The results show that even relatively mild heat waves cause an increase in core and skin temperatures and an increase in skin blood flow. While these physiological reactions help the body from overheating at rest, during standing the body must now defend both internal temperature and maintain blood pressure to prevent fainting, which puts an extra strain on the cardiovascular system.
Interestingly, many of these responses persisted after the heat wave was over, suggesting a residual effect of the heat wave. “These responses reflect the stress on the cardiovascular system that industrial workers face during heat waves, which can lead to heat illness, fainting and even potentially death due to accidents or serious medical complications in persons with underlying cardiovascular disease,” Lawley points out.
Cold study
In another study, Lawley, along with a team of eleven researchers, examined the impact of mild cold exposure on the cardiovascular system, with a specific focus on what mechanisms are responsible for the increase in blood pressure. In addition to researchers from Innsbruck, scientists from Great Britain and Canada were also involved.
Since preventing a rise in blood pressure in the cold is important, the study aimed to examine if the rise in vessel resistance (i.e. vasoconstriction) is due to a change in blood flow in the skeletal muscles or simply the skin. In a laboratory at the Department of Sport Science at the University of Innsbruck, the researchers cooled the skin temperature of 34 test subjects from a normal 32 to 34 degrees to about 27 degrees with ten degrees cold air – on one occasion the entire body was cooled, on another only the face was cooled.
“We observed that when the entire surface of the body is cooled, blood pressure increases mainly due to an increase in vascular resistance of the skin, although there was also a slight reflex increase in resistance of the blood vessels inside the skeletal muscle. However, importantly, when only the face was cooled, we saw a very similar increase in blood pressure that was due to a reflex increase in vascular resistance of the skin throughout the whole body,” Lawley describes.
Thus, the team was able to show that the mechanism(s) responsible for the rise in blood pressure during cold exposure depends on which parts of the body are cold. These data are important to educate the population about preventing the potential negative consequences of cold exposure because contrary to the perception of many, cold is even more dangerous to the body than heat.
“It doesn’t take sub-zero temperatures – as you might think – to cause serious reactions in the body, which will become common for many people unable to heat their homes during the energy crisis. While people typically know to wear warm clothing to protect the skin of their body, arms and legs, we were able to show that protecting the face is equally important even in a mild ambient temperature of ten degrees,” Lawley continues.
Extreme effects
Both studies show that climatic conditions can have extreme effects on our cardiovascular system. While negative health aspects triggered by heat waves will increase due to the climate crisis, it is particularly surprising that even cold temperatures around 10 degrees can have significant negative effects on our cardiovascular system even in young people who were part of these studies. Future studies extending these findings to our ageing population and those with pre-existing medical conditions will certainly help mitigate the risk of these new environmental challenges.
Link: https://www.nature.com/articles/s41598-022-24216-3
Source: University of Innsbruck
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Community
Viewpoint Hosted by Dennis Quaid Brings Attention to a Little-Understood Condition Affecting Families Nationwide
A new Viewpoint hosted by Dennis Quaid segment with APFED raises awareness of eosinophilic esophagitis, its subtle symptoms, and its impact on families.
For more information, readers can visit viewpointproject.com and apfed.org.
For many families, health conditions do not always begin with a dramatic diagnosis. Sometimes they show up in small, everyday habits that seem easy to explain away. Cutting food into tiny bites. Drinking extra water with every meal. Quietly avoiding certain foods altogether. A new educational segment from Viewpoint hosted by Dennis Quaid is shining a light on those subtle warning signs through a collaboration with the American Partnership for Eosinophilic Disorders, helping more people recognize the realities of living with eosinophilic esophagitis, or EoE.
Viewpoint hosted by Dennis Quaid
The segment, distributed to Public Television stations across the country, focuses on making this chronic inflammatory condition easier for the public to understand. For viewers, that matters because EoE is often misunderstood or overlooked, even as it affects daily routines, family meals, and quality of life. By connecting medical information to real-life experiences, the program gives audiences a more human picture of what people with the condition may be facing.
When everyday habits tell a bigger story
Eosinophilic esophagitis occurs when eosinophils, a type of white blood cell, build up in the esophagus, causing inflammation that can lead to tissue damage and narrowing. But what stands out most in this story is not just the science. It is the way people often adapt without realizing it. Behaviors like chewing excessively, avoiding certain textures, or relying on liquids to help swallow can become so routine that they no longer feel unusual.
That is one reason the segment carries real community value. It encourages people to look more closely at symptoms that may have been normalized for years and to seek evaluation from specialists such as gastroenterologists or allergists. It also raises awareness among parents, caregivers, and primary care providers who may be the first to notice that something is not quite right.
More than awareness
The program also explores the emotional and social side of the condition, especially for people navigating dietary restrictions and the uncertainty of delayed diagnosis. In that sense, this is not only a story about medicine. It is also a story about advocacy, support, and the importance of helping people feel seen.
APFED Executive Director Mary Jo Strobel noted that many people with EoE do not realize they have adapted their lives around a medical condition. That message gives the segment its strongest human element: awareness can change lives, not only by leading to diagnosis, but by helping families better understand experiences that may have felt isolating or confusing.
Originally distributed in January 2025, the documentary will continue to be made available to stations through March 2027, extending its reach to more households nationwide.
Related Coverage
Read more from STM Daily News on community issues, public television, health awareness, and stories that connect national topics to everyday life.
For More Information
- Visit the official Viewpoint hosted by Dennis Quaid website
- Learn more about the American Partnership for Eosinophilic Disorders
STM Daily News is a vibrant news blog dedicated to sharing the brighter side of human experiences. Emphasizing positive, uplifting stories, the site focuses on delivering inspiring, informative, and well-researched content. With a commitment to accurate, fair, and responsible journalism, STM Daily News aims to foster a community of readers passionate about positive change and engaged in meaningful conversations. Join the movement and explore stories that celebrate the positive impacts shaping our world.
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health and wellness
Progress, Not Perfection: How Healthy Habits Can Stack Up One Step at a Time
The article emphasizes that achieving better health relies on progress, not perfection. It advocates for realistic goals and highlights tools like My Life Check for personalized health assessments. Small, manageable changes in diet, exercise, sleep, and stress management can significantly impact overall well-being, making healthy habits more attainable and sustainable.
Last Updated on April 1, 2026 by Daily News Staff
Progress, Not Perfection: How Healthy Habits Can Stack Up One Step at a Time
(Feature Impact) Despite the best of intentions, it’s common for plans to build healthier habits to fall flat. Often, the culprit isn’t a lack of motivation or discipline; rather, it’s unrealistic expectations.
Overhauling your lifestyle requires a level of commitment that isn’t always practical. Understanding your personal health needs and the challenges you need to overcome can help give you a more realistic roadmap toward better health.
Tools to Guide You
Every plan needs a starting point and there are many reputable sources that can help guide you toward a plan that addresses your personal health needs.
For example, the American Heart Association introduced My Life Check, a simple, free tool to help individuals understand their heart health and what’s driving it. Users answer simple questions about their daily habits and health factors to get a personalized Heart Health Score in minutes.
The results are private and downloadable, giving you full control of your information. The tool turns big goals into small, specific actions you can start right away. Knowing your numbers relative to your heart health (and where you are in comparison to target ranges for optimal health) can help you decide how to build a better map to get you where you want to be.
While the report is customized to each individual, no personal data is stored and answers are only used to calculate health scores and provide personalized recommendations and practical steps to improve your health, so you can use your results to focus on what matters most to you. Every small step you take, such as moving more, eating smarter, sleeping better or managing stress, can add up over time.
Finding Your Path
Once you’re armed with data and know where you stand on your heart health numbers, small steps become clearer and more manageable. That knowledge makes it easier to choose one area to focus on, such as getting more sleep, taking daily walks or adding more color to your meals.
Healthy changes don’t need to be expensive or complicated. The best habits are ones that fit real life when every action you take moves you closer to your goals.
Staying motivated and on track is also easier when you can check back in, see your progress and realize the steps you’re taking are making an impact. Checking in every few months to see how you can grow gives you the chance to celebrate your progress, learn from challenges and keep building lasting habits that feel good.
To get started with personalized tips to set your own health goals, visit heart.org/mylifecheck.
Healthy Habits for Everyday Life
Eat Smart
Choose foods that help you feel your best, one meal at a time. Add more color to your plate and focus on balance, not restriction. Simple, affordable swaps can make a real difference.
Smart Tip: Aim for an overall healthy eating pattern that includes whole foods, fruits and vegetables, lean protein, nuts, seeds and cooking in non-tropical oils such as olive and canola.
Move More
Find movement that fits your life, such as a walk, a stretch or dancing while you cook. Every bit of activity counts and it all supports your heart and mind. Move for joy, not just for results.
Smart Tip:Adults should get 150 minutes of moderate physical activity (or 75 minutes of vigorous activity) per week. Kids should aim for 60 minutes every day, including play and structured activities.
Sleep Well
Rest is a foundation of good health, not a reward. Protect your bedtime routine and give your body the recovery it deserves. Notice how good sleep makes everything else easier.
Smart Tip: Most adults need 7-9 hours of sleep each night. Children require more. Adequate sleep promotes healing, improves brain function and reduces the risk for chronic diseases.
Manage Stress
Check in with yourself regularly, both mentally and emotionally. Create simple moments to pause, breathe, laugh or step outside. Connection, kindness and calm all support a healthy heart.
Smart Tip:The first step to stress management is awareness. Step “away from yourself” for a moment. Objectively ask yourself, “Is my stress level too high?” If so, look at what might be causing that stress.
Ideas for Incremental Changes
- Dedicate 15 minutes at the beginning or end of the day to focus on self-care, whether it’s unwinding with some music, writing down your goals or reflecting on the highlights of the day.
- Aim to add an extra serving of fruits or veggies each day, such as creating a savory veggie omelet or exploring new smoothie blends that let you pack in the produce on the go.
- Give your cabinets a quick update and put the smaller plates front and center. When you use a smaller plate, you can fill it while still sticking to recommended serving sizes.
- If you’re not a fan of the gym, think about how your hobbies can play a role in your physical activity. Even gardening counts as physical activity, so get creative to get moving with an activity you truly enjoy.
- Establish a bedtime routine that allows you to ease into sleep more easily. Once you feel the impact of better-quality rest, you may find yourself more motivated to make a regular bedtime a priority.
Photos courtesy of Shutterstock
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Lifestyle
How to Practice Thoughtful Grief Etiquette Online
Grief experts advise caution in sharing condolences and loss-related information on social media, emphasizing the importance of prioritizing the grieving family’s needs. Thoughtful posting practices include waiting for family approval, reaching out privately first, and avoiding speculation about the cause of death. Compassionate communication is essential in these sensitive situations.
Last Updated on March 31, 2026 by Daily News Staff
(Feature Impact) News of a death can spread online in seconds – often before families have notified close family members privately. That’s why grief experts urge people to rethink how they share condolences, tributes and loss-related information on social media, particularly during the winter months when grief can feel especially isolating.
“Grief etiquette is about putting the needs of the grieving family first, not our urge to say something publicly,” said Dr. Camelia L. Clarke, National Funeral Directors Association (NFDA) spokesperson, funeral director and grief educator with nearly 30 years of experience. “Just because information can be shared instantly doesn’t mean it should be.”
Social media has become a common place for sharing condolences, tributes and memories. However, grief experts caution that, without thoughtful consideration, online posts can unintentionally cause harm. Knowing when to post, what to say and when to remain silent can make a meaningful difference for families experiencing loss.
Consider this advice from the experts at the NFDA.
Grief Etiquette in the Digital Age
Grief etiquette refers to the unspoken guidelines for how individuals acknowledge death, loss and mourning, particularly online.
According to Clarke, one of the most important principles is restraint.
“When a death is shared online too quickly, families can feel exposed and overwhelmed at a moment when they’re still processing the loss themselves,” she said. “Waiting is an act of compassion.”
Best Practices for Posting About Loss Online
As social media continues to play a role in modern mourning, grief professionals encourage users to pause before posting and consider a few key guidelines:
- Let the family lead. Don’t post about a death until the immediate family has made it public.
- Ask permission. Obtain consent before sharing photos, stories or tributes.
- Reach out privately first. A direct message, call or handwritten note can be more meaningful than a public comment.
- Avoid speculation. Don’t ask about or share details regarding the cause of death.
- Offer ongoing support. Grief extends far beyond the first days or weeks after a loss.
What to Say (and Avoid)
When expressing condolences online, experts recommend simplicity, sincerity and sensitivity. Messages that acknowledge loss without attempting to explain or minimize it are often the most supportive.
Helpful phrases include:
- “I’m sorry for your loss.”
- “Thinking of you and your family.”
- “I’m here if you want to talk or need anything.”
By contrast, well-meaning cliches can unintentionally cause harm. Phrases such as “They’re in a better place” or “Everything happens for a reason” may reflect the speaker’s beliefs, but they can feel dismissive to someone grieving.
“Grieving people don’t need answers – they need presence,” Clarke said. “Listening matters more than saying the perfect thing.”
Resources for Families and Friends
As digital spaces continue to shape how people communicate during life’s most difficult moments, experts agree empathy, patience and respect remain timeless.
“Grief is deeply personal,” Clarke said. “When we slow down and lead with compassion, we honor both the person who has died and those who are left to grieve.”
To learn more about how to support a grieving person and access free, expert-reviewed resources for navigating grief, expressing condolences and supporting loved ones before, during and after a loss, visit RememberingALife.com, an initiative of the NFDA.
Photo courtesy of Shutterstock
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