It may be physiological or due to pathological factors. Sweating is a way for the body to regulate its temperature. After the body has eaten, it produces more heat and therefore has a certain increase in body temperature. If you are chubby or happen to be in the heat of summer, you are likely to start sweating due to the increase in body temperature. However, if you are significantly hotter than normal and sweat profusely after a little exercise or eating, you should also be on the lookout for endocrine disorders such as hyperthyroidism or menopausal syndrome.