LIFE SCIENCE

Detailed explanation-1: -They found that elevated body temperature sets in motion a series of mechanisms that regulate our immune system. When we are healthy, our body temperature tends to gravitate around 37°C (98.6°F). But when faced with an infection or virus, body temperature often goes up, resulting in a fever.

Detailed explanation-2: -It is triggered by floating biochemical substances called pyrogens, which flow from sites where the immune system has identified potential trouble to the hypothalamus via the bloodstream. Some pyrogens are produced by body tissue; many pathogens also produce pyrogens.