Learning About The Causes That Turn Hair Gray
Stress And Genetics Play A Role, Along With Certain Diseases
The hair color is fixed and depends on the follicle. However, at a certain age, the hair begins turning gray, probably because of lower production of human growth hormone, and the age it begins depends on genetics. Other causes are stress. According to specialists, stress may be responsible for rapid hair loss, which also grows back rapidly, but in the form of gray hair. Also, there are health conditions that result in hair graying, such as alopecia areata, deficiency of vitamin B12 and thyroid disease, among others. More details here.