Why hair turns grey

[ahlam1399]

http://img-s-msn-com.akamaized.net/tenant/amp/entityid/BBAT6zh.img?h=100&w=100&m=6&q=60&o=f&l=fScientists have pinpointed the cells that cause hair to turn gray and to go bald in mice, but more research is needed to understand how the process works in humans.



أكثر... (http://www.msn.com/en-in/health/wellness/scientists-discover-why-hair-turns-gray-and-goes-bald/ar-BBAVZeN?srcref=rss)