Articles tagged with Body Temperature
Exercise performed in hot environments improves aerobic performance, reduces resting and exercise core temperature, and increases sweat rate. Additionally, exercise-induced metabolic heat production promotes a degree of heat resilience even without environmental heat exposure.
Researchers at Arizona State University have discovered an overlooked physical process that significantly impacts sweat's cooling effect in hot, dry environments. The study found that temperature and humidity can create an opposing upward flow near the skin, canceling out airflow and increasing body heat storage.
A study of comatose survivors treated with therapeutic hypothermia found that longer cooling durations did not improve neurological outcomes. Increasing cooling duration was ineffective in improving patient recovery after out-of-hospital cardiac arrest, suggesting alternative treatments may be more effective.
A new study suggests that sweat can reveal information about a person's health, including hormone levels, medication doses, and early detection of diseases like diabetes and cancer. Wearable sensors using artificial intelligence can detect specific metabolites in sweat, providing personalized health insights.
A new Cochrane review found that immediate skin-to-skin contact between newborns and their mothers significantly improves exclusive breastfeeding rates, optimal body temperature, breathing, and heart rate. The review suggests that skin-to-skin contact should be the global standard of care for all babies after birth.
Heat-related deaths are projected to rise four-fold by 2050 if global temperatures reach 2 degrees Celsius above pre-industrial levels. Experts recommend a physiology-based approach that focuses on hot people, using tools like HeatWatch, to enhance heat adaptation and minimize carbon intensity.
Researchers found that moderate doses of caffeine consumed during exercise prolonged high-intensity exercise and reduced perceived exertion, while minimizing physiological strain. This approach may be an effective strategy for improving exercise performance in the heat without exacerbating hyperthermia-induced hyperventilation.
Researchers found that ice slurry ingestion lowered core temperature, reduced ventilation, and increased cerebral blood flow index during exercise in the heat. This study suggests that pre-exercise ice slurry may alleviate hyperventilation and cerebral hypoperfusion, improving late-stage endurance performance.
A new study funded by the National Institutes of Health found that cooling treatment for preterm infants does not reduce the risk of disability or death from oxygen loss. The study evaluated 188 preterm infants with hypoxic ischemic encephalopathy and found a higher risk of death and disability in those who received the cooling treatment.
A team of researchers developed a smart jacket with environmental sensors, heat-generating yarns, and AI to monitor and regulate temperature. The jacket provides immediate temperature readings and color-changing yarns to indicate potential overheating.
A Tel Aviv University study found urban bats have shorter pregnancies and start reproducing earlier due to favorable temperatures and food abundance in cities. This is the first study linking urban living to mammalian reproductive patterns.
A new study of Colorado grasshoppers found that certain species can thrive in a warming world by taking advantage of earlier springs, while others decline in size as vegetation dries up earlier. The research provides insight into how insects respond to climate change and how to predict winners and losers.
A new study from University of Florida researchers finds that heatstroke can lead to lasting, multi-organ damage and obesity in mice for months afterward. The animals' hearts metabolically crashed two weeks after the initial injury, leading to chronic deterioration and weight gain.
A case report warns of the dangers of overheating in saunas without proper hydration. A woman's condition led to admission and treatment for heat stroke, with a high core body temperature and organ dysfunction, emphasizing the importance of regular checks on sauna staff.
A new study found that heat therapy positively modulates multiple physiological parameters in APP/PS1 mice, with improved memory in males and worsening effects on females. This highlights the importance of personalized treatments based on sex-specific responses to therapy.
A QUT-led research team developed an ultra-thin, flexible film that converts body heat into power, enabling sustainable energy for wearable electronics. The technology also offers efficient cooling methods for chips, potentially improving smartphone and computer performance.
Researchers discovered a new component of the peripheral nervous system that acts by increasing energy metabolism in the body. This finding paves the way for simpler and cheaper drugs to control obesity and weight gain.
A new Harvard study finds humans possess higher metabolic rates than primates and apes, allowing for bigger brains, longer lifespan, and increased reproduction. Humans have 'escaped a tradeoff' between resting and active metabolism due to unique sweating ability.
The international project will analyze temperature-sensitive proteins in animals adapted to different thermal environments to understand how they perceive temperature changes. The study aims to uncover the molecular mechanisms underlying cold perception in animals, enabling them to initiate physiological responses crucial for survival.
Older adults exposed to extreme indoor heat showed small reductions in end-exposure core temperature and heart rate when using electric fans. However, these changes were of questionable clinical importance and did not exceed previous suggestions for significance.
Dragonfly species with darker wing coloration have evolved to tolerate higher temperatures, possibly a decisive advantage in a warming world. This finding could help predict which species are vulnerable to extinction and preserve biodiversity.
Researchers validated infrared thermal imaging as a non-invasive tool to assess reindeer stress during human interactions. Thermal imaging cameras detected temperature changes in the eye corner, indicating stress, without causing physical harm to the animals.
Researchers at UW have created a flexible, durable electronic prototype that converts body heat into electricity, powering small electronics like batteries or sensors. The device is also resilient and can be used in various applications, including wearables and data centers.
A University of Arizona study has found a consistent pattern: Animals with higher body temperatures are more likely to evolve into herbivores. This relationship holds true across major land vertebrate groups, and is linked to the unique digestive challenges posed by plant-based diets.
The team created stable microbial therapeutics using synthetic extremophiles, maintaining potency and function over time despite extreme temperatures and harsh manufacturing processes. These formulations have potential applications in healthcare, agriculture, and space exploration.
Researchers found that facial temperatures are associated with chronic illnesses like diabetes and high blood pressure. They discovered specific regions of the face where temperatures correlate with age and health, including the nose, eyes, and cheeks.
Researchers found that older female mice receiving daily whole-body heat treatment gained less weight and showed improved insulin sensitivity. The therapy also mitigated weight gain induced by a high fat diet and reduced fat accumulation in key areas.
Researchers at UCSF have discovered a way to turn ordinary white fat cells into beige fat cells that burn calories, opening the door to developing new weight-loss drugs. The approach uses a protein called KLF-15 and may avoid side effects associated with current treatments.
A new study found that magnesium levels in sandhoppers increase during cold weather, slowing their activity. In deeper sleep, magnesium levels can more than double, putting the sandhopper into a torpid state and allowing it to conserve energy.
Scientists found that a small increase in temperature can drastically change mutation frequency in E. coli bacteria, facilitating resistance development. The results suggest using fever control or antimicrobial drugs at higher temperatures to mitigate antibiotic resistance.
A laboratory study found that passive heat exposure stresses the heart, increasing myocardial blood flow in all participants, regardless of age or health status. Adults with a history of CAD are at particular risk and may benefit from minimizing cardiac strain during extreme heat by staying cool.
Researchers have discovered new binding sites for medications in proteins by heating them to body temperature, revealing previously unknown structures. This breakthrough could lead to the development of more effective drugs for various health conditions, including stroke, heart disease, and diabetes.
A new study published in PLOS Medicine estimates that more than 150,000 people die annually from heatwaves worldwide, with the highest number of deaths in Asia and Europe. The research also reveals regional disparities in heatwave-related mortality, with areas having dry climates and lower-middle incomes experiencing the highest rates.
SMART researchers develop a nanosensor that selectively detects salicylic acid in live plants, vital for stress response. The sensor combines sensors for H₂O₂ and salicylic acid, enabling simultaneous monitoring of plant hormones and aiding in early diagnoses to improve crop resilience.
Preliminary research suggests that short-term heat exposure can lead to increased inflammation and impaired immune function, making individuals more susceptible to infections. Adults older than 60 and those with existing cardiovascular disease are particularly at risk.
A study led by the University of Oklahoma's Christian Lemon investigates the role of TRPM8 receptors in oral temperature perception. The research found that these receptors are crucial for distinguishing warm temperatures from cooling sensations. Without TRPM8, the brain tends to blur the lines between warmth and coolness.
The study reveals changes in motor protein structure and energy consumption during hibernation, highlighting key differences between large and small hibernators. Myosin plays a crucial role in non-shivering thermogenesis, with smaller mammals experiencing increased ATP consumption at lower temperatures.
Researchers found that honey bees can fly in temperatures ranging from 77 to 104 degrees Fahrenheit without overheating, by lowering their wingbeat frequency and increasing stroke amplitude. This adaptation helps the bees conserve water and improve their heat tolerance.
Researchers at UW developed a wireless wearable earring that monitors earlobe temperature, detecting fever, eating, exercise, and ovulation. The earring's battery life is 28 days, and it can be personalized with fashion designs without affecting accuracy.
A study using infrared cameras found that high air and ground temperatures limit numbats' ability to forage in the sun, forcing them to retreat to the shade. Climate change may also make the shade too hot for numbats to survive.
A Eurac Research study conducted in the terraXcube simulator found that humans can perceive temperature differences as small as 0.92 degrees Celsius. This sensitivity suggests an inherent characteristic of human perception, influencing our thoughts and actions. The study's results have implications for energy sustainability in buildings.
Researchers have developed a novel method to produce a selective anticancer precursor substance. The synthesis involves the reaction of metal-active oxygen species with nitrile, utilizing cost-effective metals at lower temperatures. This breakthrough opens up new possibilities in developing innovative drugs against cancer.
A new study explores the future limits of survival and livability in extreme heat conditions, finding that current estimates may not accurately represent impacts on human health. The research provides a range of safe temperatures based on factors like humidity, age, activity level, and sun exposure.
A study by Lund University researchers mapped the effects of temperature on a virus particle's genetic material, revealing its rapid injection into cells at elevated temperatures. The findings suggest that higher body temperature may increase the risk of infection spread.
A UCLA-led team has discovered the nerve supply that activates brown adipose tissue, a potential key to treating obesity. The study found nerve branches in all eight cadavers dissected, which may lead to using nerves to stimulate BAT activity for weight loss.
Researchers have pinpointed the crucial changes in a membrane protein that allow Antarctic octopuses to function normally in freezing temperatures. By swapping specific amino acids, scientists discovered three key modifications that together enable the pump to work efficiently, allowing the octopus's nervous system to adapt and thrive.
Researchers developed a self-decontaminating fabric that kills coronaviruses in under 5 seconds using Joule heating. The material can handle hundreds of uses with minimal waste, transforming the way personal protective equipment is made and used.
A US study found that increasing nest temperatures affects leatherback hatchling morphology, performance and hatching success. Mid-season nests had the highest hatching success and better physical performance.
The patented cooling pads designed by Purdue researchers improve feed intake and milk output in sows and increase piglet weaning weight. The technology also maintains boar semen quality and reduces heat stress abnormalities.
SARS-CoV-2's nucleocapsid protein (N) uses human body temperature to replicate, binding to RNA motifs at specific spatial folds. The study reveals new functions and potential targets for antiviral drugs.
Researchers identified an upper critical temperature (UCT) for humans, where metabolic energy costs rise significantly. This finding has implications for working conditions, sport, medicine, and international travel.
Research suggests whole body cryostimulation improves cholesterol and blood sugar levels in individuals with obesity. After two weeks, the WBC group experienced a greater reduction in waist circumference and blood glucose levels compared to the sham treatment.
A new study suggests that cold exposure in the morning may be more effective at boosting metabolism and burning fat than in the evening, especially in men. In women, however, there was no significant difference in response to cold exposure times, but they were more tolerant of cold in the morning.
Engineers at UMass Amherst invent bilayered fabric that traps warmth like polar bear fur, keeping wearer comfortable in cold temperatures. The fabric is also lightweight and efficient, making it a sustainable alternative to traditional insulation.
Research reveals that cold activates cellular cleansing mechanisms that break down protein clumps, preventing age-related diseases like Alzheimer's and Parkinson's. By modulating proteasome activity, scientists have found a potential therapeutic target for aging and related neurodegenerative disorders.
Researchers from the Chinese MARA-CABI Joint Laboratory have discovered the optimum time to apply safer-to-use biopesticides to fight the Oriental migratory locust pest. The study, published in Frontiers in Physiology, found that applying biopesticides on younger locusts at dawn or dusk is most effective due to lower body temperatures.
A new study finds that warmer temperatures cause a pathogenic fungus to experience adaptive responses, leading to increased disease-causing potential. The research, led by Asiya Gusa at Duke University, suggests that rising global temperatures may contribute to the evolution of more virulent fungal pathogens.
A new injectable hydrogel has been developed to rapidly stop bleeding from traumatic wounds. The material becomes solid when injected into the body and can be easily washed away with a cold saline solution.
Researchers at the University of Gothenburg found that using warmer brain irrigation fluid can halve the number of repeat operations needed to remedy bleeding under the cranium. This method involves replacing room temperature irrigation fluid with body temperature fluid, resulting in a significant reduction in surgical interventions.
UCF researchers are developing a wearable, wireless health monitor to track physiological response to heat stress in firefighters. The device aims to identify correlations between heat stress and skin thermal activity for the first time, providing insight into the link between heat stress and serious medical issues.