Every square inch of the human body has an average of 32 million bacteria on it.
The skin is the soft outer cover/organ that forms the outer surface of the body. There are over 4 million pores in the skin. In 1 square inch of skin, there lie 4 yards of nerve fibers, 1300 nerve cells, 100 sweat glands, 3 million cells, and 3 yards of blood vessels. Every square inch of the human body has an average of 32 million bacteria on it. Humans shed about 600,000 particles of skin every hour - about 1.5 pounds a year. Most dust particles in your house are made from dead skin. By 70 years of age, an average person will have lost 105 pounds of skin.