Facts about the skin
The skin weighs about 12-15% of the total body heaviness.
The normal person has 21sq ft of skin and about 300 million skin cells.
The skin discharges as much as 3 gallons of sweat a day in burning weather.
A large quantity of the dirt in the home is dead skin. The skin drops up to 30,000-40,000 dead skin each minute of the day which is equal to 4kg of skin every year.
The skin on the mouth is 200 times more responsive than the fingertips.