The body’s overlooked defense system

The skin is one of the body’s important defense systems. It keeps moisture in the body and protects the body from toxins in the water or air, ultraviolet rays, and bacteria. In older age, the skin becomes thinner and drier, and it is more prone to tearing and splitting, increasing the risk that germs can get inside the body. Petroleum jelly, creams, oils, and humectants can all help maintain a healthy skin barrier. They are most effective if applied right after hand washing or bathing.