Articles tagged with Chronic Stress
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Chronic stress in mice primes their immune systems for a prolonged fight, causing an excessive reaction to later acute stressors. The study's findings mimic symptoms of post-traumatic stress disorder and suggest the spleen plays a key role in storing primed immune cells.
Researchers found that chronic stress generates more myelin-producing cells and fewer neurons in the brain, disrupting communication and potentially leading to mental problems like anxiety and depression. This long-term change in brain structure may also contribute to conditions such as PTSD, schizophrenia, and ADHD.
Researchers found decreased neuropeptide Y neurons, upregulated leptin receptors, and disrupted feeding behavior pathways in rats with chronic immobilization stress. Chronic stress leads to increased leptin receptor expression and suppressed neuropeptide Y synthesis.
A new study from Carnegie Mellon University reveals that self-affirmation can protect against the negative effects of stress on problem-solving performance. Participants who underwent a brief self-affirmation exercise showed improved problem-solving abilities under time pressure, suggesting a potential strategy for boosting performance.
Research published in PLOS ONE found that self-affirmation exercises can improve problem-solving skills and reduce acute stress. Students who performed a self-affirmation exercise scored higher on a subsequent problem-solving task than those who did not, suggesting that self-affirmation may be a useful buffer against chronic stress.
New research by Daniela Kaufer and Elizabeth Kirby found that acute stress doubles the proliferation of new brain cells in the hippocampus, leading to improved mental performance two weeks later. The study suggests that moderate stress can help individuals perform better when alert, but excessive stress can be harmful.
Research found that surviving siblings are more likely to experience a heart attack years after their sibling's death. The risk is higher for women, who face a 25% increased likelihood of heart attack within four to six and a half years after bereavement.
Concordia University professors Jean-Philippe Gouin and Sylvia Santosa have received $1 million in federal funding to advance their research on chronic stress and nutrition. The funding will support investigations into the psychological and physiological processes that link chronic caregiving stress to immune problems and poor health.
Researchers found that chronic stress predicts greater increases in body weight over time in both black and white girls. However, the negative effect of chronic stress on black girls' weight may explain racial disparities in obesity levels. The study suggests stress may play a role in the obesity epidemic and racial disparities.
Researchers at Columbia University Irving Medical Center have identified a potential medical treatment for the cognitive effects of stress-related disorders, including post-traumatic stress disorder (PTSD). The experimental drug S107 prevented learning and memory deficits associated with stress-related disorders in a PTSD mouse model.
Researchers at Stanford University School of Medicine have identified a novel molecular mechanism responsible for anhedonia, the loss of pleasure in major depression. The study's findings suggest that targeting a hormone known to affect appetite may be a promising approach to treating depression.
A new research project investigates the link between chronic stress and Alzheimer's disease development. The study aims to understand how stress may become a risk factor for developing dementia, with the goal of finding ways to intervene with psychological or drug-based treatments.
Research reveals that repeated stress affects memory by reducing glutamate receptors in the prefrontal cortex, impairing high-level cognitive processes. The study provides critical insight into how chronic stress influences mental illnesses and offers potential targets for prevention and treatment.
Researchers pinpointed a novel mechanism involving β-arrestin-1, β2-adrenoreceptors, and catecholamines in chronic stress-induced DNA damage, which can lead to various disorders including cancer, aging, and neuropsychiatric conditions.
Researchers at Duke University Medical Center discovered a mechanism linking chronic stress to DNA damage. Stress leads to prolonged lowering of p53 levels, which can cause chromosomal irregularities. The study used an adrenaline-like compound in mice and found that degradation of p53 resulted in accumulation of DNA damage.
Researchers found that chronic stress causes overproduction of the RCAN1 gene, leading to neurodegenerative diseases like Alzheimer's and Down syndrome. Overexpression of this gene causes hyper-phosphorylation of tau proteins, damaging brain cells and disrupting signal transmission.
A new study reveals complex molecular mechanisms associated with chronic stress and its link to depression. The research found that genetic modifications, such as DNA methylation and histone modifications, play a crucial role in determining susceptibility to depression.
Researchers at the University of Western Ontario have discovered a link between chronic stress and heart attacks using hair cortisol levels as a biological marker. The study found that heart attack patients had higher cortisol levels in their hair samples compared to control group, suggesting chronic stress as a contributing factor.
Researchers at the University of California, Berkeley, have found a critical piece in the puzzle about how stress causes sexual dysfunction and infertility. Stress hormones, such as glucocorticoids like cortisol, inhibit the body's main sex hormone GnRH, while also increasing another hormone GnIH, which directly inhibits GnRH.
Research shows a two-way link between chronic stress and poor sleep, with both factors contributing to impaired daytime functioning. Individuals experiencing more fatigue are also more likely to report high levels of stress.
Researchers at Yerkes National Primate Research Center created an animal model to study the effects of chronic stress on behavior, physiology, and reproduction. Corticotropin-releasing factor (CRF) is a key neurohormone involved in stress response, and its increased expression is linked to anxiety, depression, and infertility.
Chronic cocaine exposure increases histone deacetylase 5, activating genes associated with addiction and depression. Stress also reduces HDAC5 function, leading to depressive-like symptoms in mice.
Researchers found that chronic caregivers develop genetic and molecular changes that effectively age their bodies by four to eight years, resulting in a shortened lifespan. Caregivers also exhibit severe depression symptoms and weakened immune systems, contributing to the negative effects of chronic stress.
Scientists have discovered a direct connection between stress and obesity, revealing that neuropeptide Y can 'unlock' fat cells. Blocking the Y2 receptor may prevent fat growth or even kill fat cells.
A new study by a University of Colorado at Boulder researcher found that an in-class writing assignment reduced the achievement gap between African-American and nonminority students by 40%. The study suggests that targeted psychological interventions could help narrow the racial achievement gap among U.S. students.
A study by the American Academy of Periodontology reveals that chronic stress, depression, and elevated cortisol levels are potential risk indicators for periodontal disease in adults aged 50 and older. Short-term psychological stress was linked to elevated plaque levels, while long-term physical stress was associated with gingivitis.
A new study found that female rats experienced markedly increased levels of the stress hormone corticosterone compared to male rats. Chronic stress has been linked to various diseases in humans, including mental illness and autoimmune disorders, which are more prevalent among women.
Researchers at Johns Hopkins Medicine found that stressed mice develop skin cancer faster than non-stressed mice. Stress-reducing programs like yoga and meditation may help individuals at high risk for skin cancer stay healthy longer.
Researchers discovered that glucocorticoid steroid hormone promotes pleasure-seeking behaviors, including eating high-energy foods, in response to chronic stress. This finding suggests that comfort food could be a natural way to curb chronic stress and its negative effects on the body.
A study published in Psychosomatic Medicine found that chronic stress is associated with an increased risk of heart disease in men. The research, led by Peter P. Vitaliano, identified a general pattern connecting chronic stress to heart disease, including poor health habits and changes in body composition and metabolism.
A study of 679 black women in Detroit's low-income neighborhoods found that tangible aids like child care, transportation, and money are crucial for their overall well-being. The research suggests that strengthening both emotional and instrumental support is necessary to reduce chronic stress and promote better health outcomes.
Researchers in London have found that high levels of neighborhood problems such as noise, unsafe areas, smells, fumes, and litter contribute significantly to levels of daily stress. These chronic stressors in urban neighborhoods can have important health effects, particularly for those living in lower socioeconomic status communities.
Researchers found that stressed caregivers caring for Alzheimer's patients have impaired immune function, including reduced lymphocyte production and elevated stress hormone levels. This vulnerability can lead to increased illness duration and severity.