0 Stress relationship with Endurance Body

Modern medicine has studied the relation of physical health to one's psychological condition. A wide range of diseases, including abdominal pain, itching, and even heart disease, associated with the effects of emotional stress. And what about the relationship of stress to the immune system itself?

Study the relationship between stress and the immune system is a difficult challenge. This is because stress is difficult to determine the standard. What might be causing stress for one person may not be for others.

When people are faced with a situation they perceive stressful, difficult for them to measure how much stress they are feeling, and it is difficult for scientists to know whether someone in the subjective impression of the amount of stress that accurate. Scientists can only measure things that may reflect stress, such as the number of times the heart beats per minute, but these measures may also reflect other factors.

Some researchers continue to examine the relationship between stress and immune function, but by far not the relationship that the main objectives to be known in immunology research. If anything, the researchers were many obstacles to do a "controlled experiment" stress levels in humans. In controlled experiments, researchers can alter the factors that determine its influence on other factors. While changing one factor alone is very difficult to do in humans, especially to measure stress.

Nevertheless, many researchers report that stressful situations can reduce various aspects of the cellular immune response. The study experts from Ohio State University, for example, showed that psychological stress affects the immune system by interfering with the communication between the nervous system, the endocrine (hormone) system, and the immune system. All three systems "talk" to each other using natural chemical messages, and must work in close coordination to be effective.

The team of researchers from Ohio State is speculated that long-term stress causes the body to secrete stress hormones - glucocorticoids, especially in the long run. These hormones affect the thymus, where lymphocytes (one of the immune cells) are produced, and inhibits the production of cytokines and interleukins that stimulate and coordinate the activity of white blood cells. In addition, the following is a report of several other researchers:

• People who care for Alzheimer's patients on average have higher levels of cortisol, a hormone secreted by the adrenal glands in the body. Higher cortisol levels make weaker antibody response to influenza vaccine in.

• T cell activity has been found to be lower in depressed patients compared with patients without depression, and in men who are separated or divorced compared with men who are married.

• In an annual study, people taking care of a husband or wife who had Alzheimer's disease, coined changes in T cell function Especially for those who have a narrow social environment.

• Four months after the passage of Hurricane Andrew in Florida, people who live in the most heavily damaged showed reduced activity in several measures of the immune system. Similar results were found in studies of hospital employees after an earthquake in Los Angeles.

With a look of some of these studies, there may be a link between stress and the immune system, but studies have not shown overall causality.