Cortisol is a hormone made by the adrenal cortex (the outer layer of the adrenal gland). It helps the body use glucose (a sugar), protein, and fats. Cortisol made in the laboratory is called hydrocortisone. It is used to treat many conditions, including inflammation, allergies, and some cancers. Cortisol is a type of glucocorticoid hormone.
Australian researchers have for the first time discovered that a specific type of irritable bowel syndrome is associated with exhaustion of the immune system in patients.
AUSTRALIAN scientists have discovered that exhausted immune cells point to a specific type of irritable bowel syndrome (IBS).
Stress, especially in women, is increasingly being recognized as a major risk factor for coronary heart disease, a condition in which blood vessels to the heart are blocked by plaque buildup or inflammation.
In a new review of the effects of acute exercise published in Brain Plasticity, researchers not only summarize the behavioral and cognitive effects of a single bout of exercise, but also summarize data from a large number of neurophysiological and neurochemical studies in both humans and animals showing the wide range of brain changes that result from a single session of physical exercise.
Cannabis smokers often report that they use the drug to relax or relieve stress, but few studies provide clinical evidence of these effects.
The human body works according to a roughly 24-hr cycle. It is controlled by a master clock in the brain and by peripheral clocks in other parts of the body, which are synchronized according to external cues such as light.
The feeling of constantly being on edge, always having to take care of everything, not being able to find a balance: If an expectant mother is strongly stressed over a longer period of time, the risk of the unborn child developing a mental or physical illness later in life - such as attention deficit hyperactivity disorder (ADHD) or cardiovascular disease - increases.
If the mother is stressed over a longer period of time during pregnancy, the concentration of stress hormones in amniotic fluid rises, as proven by an interdisciplinary team of researchers from the University of Zurich. Short-term stress situations, however, do not seem to have an unfavorable effect on the development of the fetus.
When a close friend shares bad news, our instinct is to help. But putting ourselves in a friend's shoes, imagining how we would feel if we were the one suffering, may have detrimental effects on our own health, according to a new study led by the University of Pennsylvania's Anneke E. K. Buffone.
A new paper published in the Journal of Gerontology suggests that the period around retirement may widen socio-economic inequalities in stress and health.
Lutein and zeaxanthin isomers--known as the macular carotenoids--are traditionally associated with eye health, but researchers at the University of Georgia found an interesting connection to their function in brain health, showing that they improved psychological stress levels and reduced serum cortisol.
Feeling down is a common side effect of being diagnosed with cancer. Anxiety, guilt, and distress often come hand-in-hand with diagnosis and treatment.
In a game of chicken, the most aggressive players are fueled by testosterone and are more willing to harm others; and while it may be easy to demonize such hawkish behaviors, psychology researchers from The University of Texas at Austin say there is sound evolutionary reason for their existence.
Research led by scientists at the University of Birmingham has revealed a new cause of high blood pressure which could lead to major changes in managing the disease.
After surviving acute respiratory distress syndrome, a disease in which fluid begins to leak into the lungs of critically ill patients and makes it difficult to breathe, many patients develop mental illness.
In recognition of April's National Stress Awareness Month, Youfit Health Clubs conducted a survey to reveal America's stress levels and stress-related habits. The study found that more than 70% of Americans suffer from stress, and of those, more than half deal with stress on a daily or weekly basis.
High concentrations of the stress hormone, Cortisol, in the body affect important DNA processes and increase the risk of long-term psychological consequences.
The continuous daylight conditions of summer in Antarctica are known to interfere with physiological functions such as sleep patterns and the release of melatonin, a hormone associated with circadian rhythms and sleep.
Stress and anxiety are widely believed to contribute to drinking. Alcohol is thought to reduce tension caused by stress (the "flight or fight" response) as well as alleviate the unpleasant symptoms of anxiety (anticipation of the unpredictable, impending threats).
Up to 20 percent of U.S. veterans who served in Iraq and Afghanistan developed symptoms of post-traumatic stress disorder from trauma experienced during wartime, but new neuroscience research from The University of Texas at Austin suggests some soldiers might have a hormonal predisposition to experience such stress-related disorders.