There are various causes of gray hair, of which the treatment is also different, the general physiological gray hair can be cured and restored through dietary therapy or other conditioning, but the nature of the disease gray hair such as leukemia is more difficult to cure. Here are a few of the causes of gray hair and conditioning methods: 1, genetic factors: genetic factors may lead to gray hair, but this possibility is relatively small. If it is hereditary usually pay attention to life conditioning can be, there is no better way; 2, natural aging: the pigment cells at the root of the hair follicles of the elderly gradually stop making melanin, thus forming gray hair. Natural aging can be supplemented to slow down aging; 3, lack of trace elements: teenage white and other abnormal gray hair, may be because the body lacks a certain trace elements, need to pay more attention to nutritional intake in ordinary life.