Q: Why do we feel very drowsy when we are suffering from high fever (viral)? What is the cause of body ache during fever?

A:Fever is caused by the body's reaction to an alien organism and the resulting expenditure is an indication of the destruction, just as smoke is liberated when burning coal. However, too much heat from fever can damage brain cells and we need to reduce the reaction using medications if physical cooling is ineffective. During fever bouts, the stimulation of the nervous system results in muscular hyperactivity that could end in a seizure, which could indicate that life is at stake if action is not taken to eliminate the cause while controlling the fever over-reaction.