stress

It is likely that the stress hormone cortisol plays a major role in delaying puberty.See also:Health & MedicineHormone DisordersMental Health ResearchMind & BrainSteroidsNeurosciencePlants & AnimalsFishBiologyReferenceDelayed pubertyAnterior pituitaryEndocrine systemPituitary glandChanges in water temperature produce stress in fish.

Fortunately, in addition to physical surroundings, there are other ways to reduce stress in dogs.In a separate study, published in the spring issue of the journal Physiology and Behavior, Coppola, Enns and Grandin examined the effect of human contact on stress response of shelter dogs

ee also:Plants & AnimalsMarine BiologyFishSea LifeEarth & ClimateCoral ReefsEcologyGlobal WarmingReferenceCoral bleachingCoral reefGreat Barrier ReefSoutheast Asia coral reefsPollution and overfishing have for some time been major threats to the health of coral-reef ecosystems, but additional environmental stress caused by warming of ocean waters has recently become a key factor in coral-reef stability. The importance of this kind of stress is illustrated by the massive coral-bleaching event of 1997--1998, which impacted 16% of the world's reefs and was particularly damaging in regions of the Pacific and Indian Oceans

ee also:Health & MedicineChildren's HealthMental Health ResearchHealthy AgingMind & BrainStressPsychiatryAnxietyReferenceSeparation anxiety disorderPsychological traumaEmotional detachmentPhobiaPTSD is a psychological condition that occurs following exposure to a traumatic event, such as warfare, crime, a natural disaster or a life-threatening illness. Symptoms include sleep problems, depression, flashbacks and anxiety.

ee also:Health & MedicineMental Health ResearchChildren's HealthAccident and TraumaMind & BrainStressPsychiatryDepressionReferencePsychological traumaAmnesiaEmotional detachmentPost-traumatic stress disorderPost-traumatic stress disorder (PTSD) is a unique psychiatric diagnosis because it requires an initiating event, such as war, rape, natural disaster or serious illness, according to background information in the article. In children, the list of events that could lead to PTSD includes a parent being sent to prison, sudden separation from a loved one and learning of a traumatic event occurring to a loved one

This finding may explain why stress-related mental illnesses occur at least twice as often in women as in men. It also may explain why the discrepancy in prevalence begins in women at puberty, continues through the childbearing years, and then declines in postmenopausal years, said Becca Shansky, a graduate student in neurobiology at Yale School of Medicine and lead author of the study to be published in the March issue of Molecular Psychiatry.

However, each child reacts to that stress somewhat differently. Our study found that genes play a role in this variability, such that those children who have a stress-sensitive variant of a serotonin-related gene are particularly likely to appear shy while growing up when they also are raised by mothers with high levels of stress.

ee also:Health & MedicineMental Health ResearchWorkplace HealthAlternative MedicineMind & BrainStressPsychologyAlcoholismReferenceEmotional detachmentStress (medicine)Psychological traumaIllusion of controlImagine calling a customer service phone number to discuss an overcharge on a cell phone or credit card bill. Imagine being repeatedly transferred and put on hold, with the gut-wrenching sound of lounge music in the background droning on and on like water torture.

The study is based on 2006 data from 1,544 participants in the U-M Health and Retirement Study, conducted by the U-M Institute for Social Research (ISR). By the year 2010, middle-aged and older workers are expected to outnumber their younger colleagues, making the physical and emotional well-being of older workers a growing concern for U

PsychologistIn the first study, researchers found that the threat of lay-offs can put workers at risk for workplace injuries and accidents. In this study of 237 food-processing plant employees, employees who feared they might be laid off showed decreased safety motivation and compliance, which are related to higher levels of workplace injuries and accidents.

Examples of physical stress are injury, illness, or prolonged exposure to cold.During the study, researchers gave adult male rats free access to food and water and also offered them a small amount of sugar drink, artificially sweetened drink, or water twice a day.

During the experiment, the women were given two stress-inducing tests. In one test, they had to continuously and rapidly subtract 17s from a four-digit number.

In fact, for every severe stress a patient reported in a six-month period, the risk of early disease progression doubled. And among those tracked for at least two years, higher severe life stress increased the odds of developing HIV disease progression nearly fourfold, researchers wrote in the June issue of the American Journal of Psychiatry

Kajantie recognizes that the effects of fetal environment on stress-related adult disease could have a fundamental impact on our understanding of these disorders and their prevention. While considerable research is required before more conclusions can be drawn, there is great potential for early disease diagnosis and prevention through the study of fetal development

Their findings, published in a recent issue of Psychoneuroendocrinology, show increased stress hormones lead to memory impairment in the elderly and learning difficulties in young adults. See also:Health & MedicineMental Health ResearchWorkplace HealthChronic IllnessMind & BrainMental HealthDepressionStressReferenceHealth benefits of teaSleep deprivationStress (medicine)Amnesia"Stress has become more commonplace and accepted in our everyday lives," says Sonia J.

People who exercise regularly are less likely to get sick after stressful situations than people who don't exercise, said Assistant Professor Monika Fleshner of the department of kinesiology and applied physiology at CU-Boulder. Doctors know exposure to mental or physical stress can increase susceptibility to and severity of disease

ee also:Health & MedicineHeart DiseaseMental Health ResearchStroke PreventionMind & BrainStressMental HealthDepressionReferenceCoronary heart diseaseLow density lipoproteinPsychological traumaPost-traumatic stress disorderA link between stress and coronary heart disease (CHD) has long been proposed. Numerous studies have found that cardiovascular disease and its risk factors are more common among individuals with post-traumatic stress disorder (PTSD), according to background information in the article.

ee also:Health & MedicineHypertensionHeart DiseaseWorkplace HealthMind & BrainStressMental HealthDepressionReferenceHealth benefits of teaStimulantBlood sugarCaffeineIn a study of 72 habitual coffee drinkers, the researchers found that subjects produced more adrenaline and noradrenalin and had higher blood pressure on days when they drank caffeine compared with days they abstained. The two stress hormones are vital to helping the body react quickly in times of danger or stress, but they can damage the heart over a lifetime of heightened production, said James Lane, associate research professor of psychiatry at Duke

Probing depths in excess of 5mm may require more advanced treatment and patients should talk to their dental specialist.Related articles from the JOP: "Stress and Psychological Factors as a Risk for Periodontal Disease: A Systemic Review" and "Hydrocortisone Affects the Expression of Matrix Metalloproteninases (MMP-1, MMP-2, MMP-3, MMP-7 and MMP-11) and Tissue Inhibitor of Matrix Metalloproteinases (TIMP-1) in Human Gingival Fibroblasts" Adapted from materials provided by American Academy of Periodontology, via EurekAlert!, a service of AAAS.

Mental stress is thought to be responsible for a further 20 per cent of these deaths, but scientists have been baffled by the exact mechanisms by which stress can bring on a fatal short-circuiting of the heart.In the UCL study, volunteers with a history of heart disease were given stressful mental tasks while their brain activity was monitored using PET imaging.