I'm 24 ys old ..recently i've noticed some grey hair ...how can this happens at this age?? is there any way to prevent its spreading??

Gray hair: In spite of the money spent on hair coloring relatively little money has been effectively spent looking at how to prevent gray hair. Stress and poor health have been associated with increased gray hair. Working to better respond to stress (exercise, mind body excercise, relaxation) exploiting unavoidable stress beneficially) and optimizing your health both would help but not totally prevent it.

Graying of hair is: related to genetic predisposition. Age of initial graying is largely a matter of genetics. However stressors: nutritional deficiencies, chemotherapy, traumatic head injuries, low vitamin B levels, zinc deficiency, severe illness, surgery & marked emotional stress may impact earlier depigmentation in people who are already predisposed to gray hair. Aging is a significant factor. In general –