Humans shed around 30,000 skin cells every minute, which results in the loss of roughly 43,200,000 each day. While this number may seem high, the epidermis is continuously reproducing cells to replace those that are lost.
According to KidsHealth, the skin consists of three layers, all of which have an important role in protecting the body.
Epidermis: This is the outermost skin layer. This is the part of the skin visible to the human eye.
Dermis: This layer of skin is not visible, but it contains nerve endings and blood vessels. This layer of skin sends signals to the brain or spinal cord to alert a person of pain.
Subcutaneous: This layer consists of fat. It protects the body by absorbing shocks and keeping it warm.