No wonder it feels so good to be touched!

An adult has over 600,000 sensory receptors in the skin - more nerve endings than any other part of the body. The fingertips are one of the most sensitive areas, with up to 50,000 nerve endings every square inch. The fingertips are so sensitive that a single touch sensor can respond to a pressure of less than 1/1400 of an ounce (the weight of an average house fly)