Scientists believe Obama's hair is much worse after eight years at the White House not because of work pressure but genetics.
I think I have to have a new hair and a silver hair, but I don't really know what gray hair is.
The basic causes of silver hair vary. The underlying cause is that hair roots no longer produce melanin, leading to hair color changes.
Researchers at the University of California, USA have discovered that some immune cells can stimulate hair growth.
There have been many anecdotes about excessive stress or fear that can make hair become white after just one night. Is that true?
Scientists have found the source of silver hair to help rejuvenate the youthful look of older people.
Hair that turns silver is an indispensable sign of old age, but scientists are experimenting with a shampoo to help the hair keep its youthful color.