Some people sweat more than others for no specific reason. But some factors can make a person sweat heavily. Heredity is an important factor as some people inherit a tendency to sweat excessively. Drinking beverages that contain caffeine or alcohol can make a person sweat more than usual. Eating spicy foods also contribute in excessive sweating. Some drugs like antipsychotic medications (used to treat mental disorders) can also cause a person to sweat more. Women going through menopause may experience hot flushes accompanied with excessive sweating. Other contributing factors include heart attack, tuberculosis, malaria and low blood sugar.

People sweat, but why and when and how much depends on the individual. Perspiration that is triggered by emotion is most likely to occur on face, hands and armpits. But the intensity of sweat and body odor it produces can be influenced by diet, mood, medical conditions and drugs being used if any. In fact it is impossible to define normal sweating. One must try to the normal conditions of sweating of his or her body. It can be helpful in noticing any unusual changes in sweating pattern.