feel sick after sick
Andhra Pradesh ~ India ~ International ~ City ~ Entertainment ~ Business ~ Sports ~ Technology ~ Health ~ Features
Breast Cancer ~ Swine Flu ~ Lung Cancer ~ Heart attack ~ Pregnancy ~ All Health Topics
Home / Health News / 2009 / July 2009 / July 21, 2009
Why we feel sick after a stressful task
RSS / Print / Comments

Diabetes

Metabolic status prior to pregnancy predicts subsequent gestational diabetes

New gene could explain relationship between diabetes, Alzheimer's

Scientists reveal new clues to origin of diabetes

More on Diabetes

Dementia

Walking at least 6 miles per week 'can reduce Alzheimer's risk'

Soon, drug to stop memory loss

Low testosterone levels could lead to Alzheimer's

More on Dementia

Alzheimer's Disease

Working memory functions despite brain damage

New gene could explain relationship between diabetes, Alzheimer's

Bilingualism boosts brain prowess

More on Alzheimer's Disease

Asthma

Bacteria linked to asthma attacks in children

US study finds smoking, ADHD link

More on Asthma

Health News

Waist size, not BMI can foretell cardiovascular risk in children
A new study by researchers at the University of Georgia, the Menzies Research Institute in Hobart, Australia and the Murdoch Childrens Research Institute in Melbourne, Australia has found that waist circumference is a better indicator of a childs risk for cardiovascular disease and diabetes later in life, as compared to BMI. ANI

Internal body temperature regulates body clock
Fluctuations in internal body temperature regulate the bodys circadian rhythm, the 24-hour cycle that controls metabolism, sleep and other bodily functions, revealed UT Southwestern Medical Center researchers. ANI

Egyptian mummies discovery indicates 'cancer is man-made'
A study of ancient remains has found that cancer is a man-made disease fuelled by pollution and changes to diet and lifestyle. ANI

Why we feel sick after a stressful task

Reviewing research investigating how stress can wreak havoc on the body, an expert at the Ohio State University College of Medicine has shed new light on this connection.


Washington, July 21 : Reviewing research investigating how stress can wreak havoc on the body, an expert at the Ohio State University College of Medicine has shed new light on this connection.

Psychologist Janice K. Kiecolt-Glaser points out that the field of psychoneuroimmunology (PNI) investigates how stress and negative emotions like depression and anxiety affect a person's health.

Over the last three decades, researchers have uncovered a number of ways that stress adversely affects human health, and specifically, how stress can damage our immune system.

Numerous studies have also shown that stressed individuals show weaker immune responses to vaccines.

Kiecolt-Glaser observes: "The evidence that stress and distress impair vaccine responses has obvious public health relevance because infectious diseases can be so deadly."

The reviewer further highlights the fact that stress and depression have been found to increase the risk of getting infections, and to result in delayed wound healing.

Kiecolt-Glaser says that inflammation is the body's way of removing harmful stimuli, and it also starts the process of healing, via release of a variety of chemicals called proinflammatory cytokines, such as interleukin-6.

However, says the reviewer, too much inflammation can be damaging and has been implicated in the development of many age-related diseases, including Alzheimer's Disease, Parkinson's disease, arthritis, and Type II diabetes.

According to Kiecolt-Glaser, the production of proinflammatory cytokines can increase due to negative emotions and psychological stressors.

It was found in a recent study that men and women, constantly under stress because they served as caregivers to spouses with dementia, had a four times larger annual rate of increase in serum interleukin-6 levels as compared to individuals without caregiving responsibilities.

The changes in interleukin-6 levels among former caregivers did not differ from current caregivers, even following the death of the impaired spouse, indicating that chronic stress might cause the immune system to age quickly.

Kiecolt-Glaser notes: "These stress-related changes in inflammation provide evidence of one mechanism through which stressors may accelerate risk of a host of age-related diseases."

The reviewer stresses the need for taking into account people's environment when studying the link between stress and health.

She says that diets may modify interactions between psychological and immunological responses.

She further points out that environmental toxins like pesticides and air pollutants can have extremely negative effects on the immune system, and these effects may be intensified in stressed individuals, increasing their risk for developing allergies, asthma, and viral infections.

She also says that to most effectively tackle the questions raised by recent PNI research, cross-discipline training needs to be emphasized for students.

According to her, psychology students who gain a strong foundation in areas such as biology and physiology will be able to enter into powerful collaborations with scientists conducting immunology research.

Kiecolt-Glaser feels that the questions answered by these collaborations will advance PNI as well as psychology in general.

"By providing key data on how stressful events and the emotions they evoke get translated into health," she suggested, "psychology will assume a more dominant role in the health sciences, in health promotion, and in public health policy."

ANI

Link to this page

Suggested pages for your additional reading
AndhraNews.net on Facebook






© 2000-2017 AndhraNews.net. All Rights Reserved and are of their respective owners.
Disclaimer, Terms of Service & Privacy Policy | Contact Us