Hair graying is a natural process that occurs as we age. It is caused by a decrease in the production of melanin, the pigment that gives hair its color. While there is no way to completely stop hair from graying, there are a number of things you can do to slow down the process and keep your hair looking its best.
One of the most important things you can do is to protect your hair from the sun. UV radiation can damage hair and cause it to lose its color. Be sure to wear a hat or scarf when you are outdoors, and use a UV protectant spray on your hair.