What are the benefits and harms of fever in humans?

Fever is an increase in body temperature in a person. Its benefit is that it is a defense mechanism. During a fever, a person’s body temperature rises above 36.7 degrees. Bacteria and viruses that cause inflammation and fever live well at 36.7 degrees. At a higher temperature, they begin to die, leukocytes – immunity cells – begin to activate. The negative side of fever is that it causes severe headache, discomfort in the person himself, especially in the weak – infants and old people. In some people, a rise in temperature causes seizures.