Sweating is your body’s way of cooling itself off. Some people aren’t able to sweat typically because their sweat glands are no longer functioning properly. This condition is known as hypohidrosis, or anhidrosis.
It depends that their sweat glands of some specific part or the entire body might have stopped working.
Diabetes, alcoholism, Parkinson’s disease, multiple system a trophy are all causes of hypohidrosis and are the real cause of it.