Articles tagged with Physiological Stress
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
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Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A new study by UMass Lowell professor Jill Portnoy found that giving children omega-3 fatty acid supplements reduces disruptive behavior, which has a positive effect on their parents' relationships. The research aims to determine effective ways to intervene before anti-social behavior escalates into crime.
A new study from the University of East Anglia found that exposure to greenspace reduces the risk of type II diabetes, cardiovascular disease, premature death, preterm birth, stress, and high blood pressure. People living close to nature also experience reduced diastolic blood pressure, heart rate, and cortisol levels.
Researchers found that anticipating stress can lower working memory later in the day, regardless of actual stressful events. This effect was particularly pronounced for older adults, who already experience cognitive decline.
A University of Guelph study discovered that muscle sympathetic nerve activity increases in over-trained athletes after overload training, hindering performance. In contrast, recreational triathletes and cyclists who followed a consistent training regime showed improved fitness and cardiovascular health.
A study published in Scientific Reports reveals that the Na/K-ATPase oxidant amplification loop plays a key role in aging and may be targeted for anti-aging interventions. Researchers successfully demonstrated the therapeutic potential of pNaKtide, a synthetic peptide, in improving impaired physiological functions.
Researchers developed a new data processing technique to monitor brain state using heart rate variability, revealing that yoga is more effective than Chi meditation in reducing stress. The study also found that long-term meditation practice can make permanent changes and improve executive control.
A comprehensive analysis of research and clinical reports reveals that psychological stress contributes to vision loss and disease progression. A holistic treatment approach combining stress management, patient education, and vision recovery techniques may be effective in interrupting this cycle.
A recent University of Minnesota Medical School study found a direct link between psychosocial stress and shortened lifespan in mice, identifying cellular senescence mechanisms and diseases associated with aging. The research also observed an increased risk of cardiovascular disease, including early-stage atherosclerosis.
Researchers found that writing critically about past setbacks leads to lower levels of the
Researchers at the University of Calgary discovered that stress transmitted from others can change the brain in mice, altering CRH neurons that control the brain's response to stress. In females, these effects are reversed after a social interaction, while males do not exhibit this reversal.
A new study by Brigham Young University finds that running under stress protects the hippocampus, a part of the brain responsible for learning and memory. Exercise strengthens synapses, maintaining long-term potentiation levels, which are essential for optimal memory formation and recall.
A new humanitarian program for war-affected youth has been shown to reduce cortisol levels by 38%, a key indicator of stress. The program, Advancing Adolescents, improved the mental health of adolescents affected by the Syrian war and had a physiological benefit.
Researchers at Penn State found that melanoma patients who received immunotherapy with beta blockers lived significantly longer than those without, with five years survival rates of 70% vs. 25%. The study suggests reducing physiological stress with beta blockers can improve the effectiveness of immunotherapy.
Researchers at Tufts University have developed a novel preclinical model of postpartum depression, showing the involvement of the HPA axis and specific protein KCC2 in inducing disorder. The study provides empirical evidence that dysregulation of the HPA axis and KCC2 can lead to behaviors mimicking postpartum depression.
Researchers found seals exhibit high stress when great white sharks are present, particularly in areas with no escape routes. Seals show reduced stress at islands with kelp beds and reefs providing safe passage from predators.
Researchers from the University of Granada found that blue lighting speeds up relaxation after an argument by accelerating physiological responses. The study used electrophysiological measurements to compare blue and white lighting on heart rate and brain activity.
A recent study found that infants as young as six months old exhibit a stress reaction when seeing spiders or snakes, with a significant increase in pupil size indicating activation of the brain's noradrenergic system.
A study found that regular exercise significantly decreased inflammatory damage to the kidneys in mice with lupus, while stress had the opposite effect. Researchers are seeking funding for a larger human trial to test the benefits of daily moderate exercise and stress management for patients.
A study found that octacosanol, a compound rich in sugarcane and other natural products, can reduce stress and restore normal sleep in mildly stressed mice. The researchers also suggest that octacosanol may be useful for treating insomnia caused by stress due to its potential to increase sleep.
Research reveals that caregivers experience improved well-being when their loved ones recognize and appreciate their help. The study suggests that specific conditions, including emotional communication and recognizing the impact of caregiving, are crucial to alleviating the burdens of spousal care.
Researchers found chronic cannabis users showed no difference in cortisol levels during stressful situations compared to non-users, hinting at potential therapeutic benefits but also raising concerns about resilience and health. The study provides an important first step in investigating the effects of long-term cannabis use.
A study by Stanford scholars found that people who believe they are less active than peers die younger, even if their actual activity levels are similar. This suggests that mindsets play a crucial role in health outcomes.
Researchers found that mice fed a high-fat diet exhibit withdrawal-like stress responses when switched to a low-fat diet, with dopamine levels impacted by stress signals. Blocking these signals normalizes the dopamine system, preventing binge-eating when the high-fat diet is reintroduced.
The study found that despite a colder climate, residents in Ii Hamina survived for centuries by having similar diets from childhood to adulthood. However, one individual displayed variation in isotope composition potentially attributable to poor nutrition.
A mutated version of the OBSCN gene may lead to irregular heartbeat and a weakened heart, especially when combined with stress. The study found that this mutation affects protein regulation in heart muscle cells, leading to inefficient heart function.
Researchers develop new protocol using PaCO2 to amplify myocardial blood flow, offering an alternative to injectable pharmacological agents. The study shows a safe and effective method for widening heart blood vessels during stress tests, benefiting patients with severe side effects from traditional methods.
New research suggests that inhaling lavender oil can reduce stress in competition horses by lowering cortisol levels. This study found a small decrease in heart rate after exposure to lavender oil during transport.
New research suggests that captive meerkat groups in zoos are more susceptible to chronic stress due to their small group sizes and constant exposure to human visitors. The study measured stress levels by analyzing hormone samples from the meerkats' droppings, revealing a link between small group sizes and high visitor numbers.
Researchers found that short-duration heat waves can prevent coffee plants from producing flowers and fruit. Younger leaves are particularly vulnerable to heat stress, which can exacerbate the effects of drought.
A study of 2,000 people found that women report higher stress levels than men for various life events, including death of a loved one, illness, and Brexit. This increased stress can lead to long-term physiological problems, such as ulcers or an increased risk of heart attack.
Researchers assessed the connection between stress and progressive vision loss from AMD using the Perceived Stress Scale. The study found that stress-reduction approaches may improve outcomes in AMD patients, and future studies could investigate the relationship between perceived stress levels and disease progression.
A recent Carnegie Mellon University study found that married individuals have lower cortisol levels than those who are single, divorced, or widowed. This biological evidence supports the notion that unmarried people face more psychological stress than their married counterparts.
A new study by Indian scientists has gained insights into the effects of a single stressful event on brain architecture. Research found increased electrical activity in the amygdala region of the brain, leading to changes in emotional reactions, memory, and decision-making.
A team of scientists led by Mark Herr found that cottonmouths with high baseline levels of corticosterone were more likely to strike during encounters. The study suggests that protecting snake habitats may reduce the incidence of snakebites and that a snake's striking behavior is related to its baseline level of stress.
Researchers at Oregon State University found that northern sockeye salmon can thermostate to find water temperatures that meet their physiological needs, reducing energy expenditure during heat waves. By moving to tributary plumes or deeper water, the fish conserve energy and avoid extreme temperatures.
A new study found that well-trained women do not experience autonomic heat responses during exercise, despite common misconceptions. The research also revealed that humid heat reduces sweat effectiveness, leading to impaired performance.
Researchers at German Resilience Center found that corticotrophs rapidly influence avoidance behavior after stress onset, contradicting previous slow effects of hormones. This breakthrough suggests new treatments for acute stress-induced reactions and alleviating conditions.
A study by University of Pennsylvania researchers found that stressed rats drink more alcohol due to altered dopamine signaling and changes in the brain's reward system. The team's findings have implications for understanding the root causes of post-traumatic stress disorder (PTSD) and developing new treatments.
A recent study published in The Journal of Physiology found that stress during pregnancy and being born with low birth weight can lead to long-term health issues in mothers. The research, led by Jean Ni Cheong from the University of Melbourne, explored the effects of these factors on maternal health after pregnancy.
A study published by the American Psychological Association found that chronic fatigue syndrome patients are more likely to suppress their emotions due to a heightened fight-or-flight response. This suppression is associated with increased anxiety and distress, which can worsen fatigue symptoms.
Injections of Mycobacterium vaccae promote stress resilience and improve coping behaviors in mice, reducing colitis and stress-induced behaviors. This study suggests that immunization with bacteria may have wide-ranging health benefits, highlighting the importance of microbiome diversity.
A University of Missouri study found that children physically react to stress from their social networks, with cortisol levels and salivary alpha-amylase indicating stress responses. The quality and size of childhood social relationships may have long-term physiological consequences for youth's physical and mental health.
A Wayne State University Ph.D. student has been awarded a prestigious NIH fellowship to investigate the effects of stress on cigarette smokers. The research aims to understand how stress impairs brain function and increase the likelihood of relapse, with the goal of developing better treatments for patients.
A UCL study found that uncertainty about receiving a painful electric shock leads to significantly more stress, even if the likelihood is low. The researchers tracked participants' stress levels and found they were better at guessing whether or not they would receive a shock when their uncertainty was high.
A study by Chenping Xu and Beiquan Mou found that spinach can be improved in nutritional value through cultural practices that impose either low fertilizer levels or slight salt stress. This approach resulted in only moderately or slightly reduced yield, while also increasing antioxidant capacity.
A recent study found that Transcendental Meditation significantly reduced stress, anxiety, and fatigue in family caregivers, while improving spiritual well-being. The technique helped caregivers manage chronic illnesses and their own physical health, leading to a calmer and more patient state.
A recent study found that California's drought has severely impacted native ferns in redwood forests, causing permanent dieback and limiting their ability to photosynthesize. The study reveals that these plants can recover quickly after heavy rains but are vulnerable to pests and diseases due to prolonged water stress.
A scientific review paper warns that chronic stress and anxiety can damage the brain's hippocampus and prefrontal cortex, increasing the risk of developing depression and dementia. Anti-depressant treatment and physical activity have been found to increase neurogenesis and may not be completely irreversible.
Research found that prairie voles living in close quarters were less stressed out and had lower levels of the stress hormone corticosterone. This is surprising as most studies link increased crowding with higher stress.
A new study found that low stress resilience in late adolescence is associated with an increased risk of developing type 2 diabetes in adulthood. The study, published in Diabetologia, followed 1.5 million Swedish male conscripts and found that those with lower stress resistance were 51% more likely to develop diabetes.
Active individuals participating in high-impact activities may need higher vitamin D levels to reduce stress fracture risk, according to recent study findings. The researchers recommend maintaining serum vitamin D levels of at least 40 ng/mL to protect against stress fractures.
Research shows that skin-to-skin snuggling between mothers and babies can decrease maternal stress levels, improving parent-child bonding and breastfeeding rates. The study found a significant reduction in maternal anxiety, feeling helpless, and stress related to NICU experience.
Researchers investigate how early life stress affects gene expression and increases cardiovascular risk in young adults. Longitudinal study analysis reveals persistent methylation changes associated with childhood trauma and ACEs.
Research published in the Journal of Leukocyte Biology suggests that ER stress is linked to poor glycemic control, dyslipidemia, and insulin resistance in patients with type 2 diabetes. Targeting ER stress may be an effective treatment strategy for diabetes.
Researchers at St. Jude Children's Research Hospital have identified a mechanism underlying the formation of stress granules in cells under stress, which are linked to degenerative diseases such as ALS. The study reveals that mutations in proteins involved in stress granule assembly can lead to toxic fibrils and disease progression.
Researchers found that body fat can send signals to the brain, affecting its regulation of energy balance and stress responses. This discovery sheds new light on the relationship between stress, obesity, and metabolism.
A study by University of Florida researchers found that body fat can send signals to the brain, affecting how it deals with stress and metabolism. The discovery reveals a novel fat-to-brain feedback network that was previously thought to be mainly driven by the brain.
A study by Georgetown University Medical Center researchers found that acupuncture blunts activity in the hypothalamus-pituitary-adrenal axis, reducing production of stress hormones. This mechanism is similar to that of antidepressants and anti-anxiety drugs, which exert their therapeutic effects on these same pathways.
A new study found that serious life events in childhood, such as death or illness in the family, divorce/separation, and conflicts, can triple the risk of developing type 1 diabetes. The study suggests that psychological stress may be a key factor in this increased risk.
A new study published in the Journal of Gerontology: Psychological Sciences found that mortality and blood pressure are directly linked to relationship quality. The research revealed that wives' stress has significant implications for husbands' blood pressure, particularly in negative relationships.