2007-03-20 10:16:04 · 4 answers · asked by Loved By Someone Above 4 in Science & Mathematics ➔ Other - Science
According to the Hair Loss Information Center:
"The ultraviolet light in direct sunlight affects the cuticle in a similar way to a bleach, and eventually the keratin protein of the hair breaks down. The result is than the hair is gradually weakened and becomes drier. The effect shows up as light streaks in the hair (sun bleaching). The reason is that sunlight breaks up some of the chemical links within the amino acid groups, in particular those between carbon atoms and sulphur atoms. It does not affect disulphide linkages or hydrogen bonds."
2007-03-20 10:23:16 · answer #1 · answered by Captain Al 2 · 0⤊ 0⤋
It is a bleaching caused by the sunlight. My daughter was an exchange student in South Africa and came home with white hair from the difference in the sunlight.
2007-03-20 10:19:25 · answer #2 · answered by science teacher 7 · 0⤊ 0⤋
Good ole radiation.
2007-03-20 10:23:38 · answer #3 · answered by KennyJitFu 5 · 0⤊ 0⤋
the UV rays do that.
2007-03-20 10:23:29 · answer #4 · answered by Fordman 7 · 0⤊ 0⤋