Stress chronique et immunité

Abstract

Chronic stress is a long-term response to the body of an annoying or stressful situation. I know that tension is not just a feeling, it involves a response from your mind that, in response to perceived aggression, increases corticosteroid production. This hormone sends signals to the rest of the body, which has different consequences for your health. If tension persists and lasts for several weeks or months, it could damage your health. Our work is aimed at learning about chronic stress and its negative effects on the human body, especially the immune system. This is the last one known as the body defense line. The link between tension and the decline in innate and adaptive immunity is now evident. Extreme and prolonged stress makes us more vulnerable to disease vector attacks. In fact, during a long period of tension, our body releases more stress hormones such as adrenaline, neur epinephrine and cortizol. This increase in hormone levels results, on the one hand, in a change in inflammative reaction; on the other hand, in a decrease in the number and activity of immune cells. However, they are necessary: their primary role is to destroy infectious agents as well as infected cells. Thus, constant and prolonged stress leads to a series of events in the body, including weakening the performance of the immune system. Nervous and worried people will become more sensitive to microbes