Why do we sweat?


Usually, we see that , In summer season we will sweat more . Actually , Why do we sweat ?????
          
                         
                                              The human body has between 2 and 3 million sweat glands distributed on its surface. The main function of these glands is to release fluid when the body is hot. These glands are controlled by hypothalamus .  Sweat is made up of salt, protein and water dissolved in urea. As it evaporates on the skin, it produces a cooling effect that helps to lower body temperature.


Intensity of heat or physical activity produces 1 liter of sweat per hour. Hot and spicy food can also cause sweat. You know what , some people who experience excessive sweating suffer from a condition is known as Hyperhidrosis which causes them to perspire more than is necessary to regulate body temperature.