2006-06-09 18:36:59 · 7 answers · asked by ANI 2 in Science & Mathematics ➔ Biology
Our hair becomes white if we don't get enough melanin. Melanin is the one that responsible body color including skin color, your eye's pupils color and your hair. We get melanin from the main source of heat the sun. That explain why people in countries near the north pole have blonde hair.
2006-06-09 18:43:46 · answer #1 · answered by musiclover2008 3 · 1⤊ 1⤋
The change in hair color is caused by the gradual decrease of pigmentation that occurs when melanin ceases to be produced in the hair root, and new hairs grow in without pigment. This could be caused by malnutrition or ageing. So far, there have been no methods devised to stop the decrease in production of melanin.
2006-06-09 19:00:30 · answer #2 · answered by smashingly.smashing 4 · 0⤊ 0⤋
the genes that code for pigment get damaged by free radicals,
soo tehy stop prudcing the pigment,
reversal is in clinical trial in england, alredy with stemm cells
grwoing hair back and ending white hair
2006-06-18 18:15:44 · answer #3 · answered by NeO Anderson 3 · 0⤊ 0⤋
when you grow old hair becomes white.
2006-06-09 18:42:20 · answer #4 · answered by DV 1 · 0⤊ 0⤋
stress plus old age
2006-06-16 03:10:08 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Because you get old
2006-06-17 21:25:55 · answer #6 · answered by Aleks 1 · 0⤊ 0⤋
melanin deterioration
2006-06-10 00:23:43 · answer #7 · answered by toss_turning 2 · 0⤊ 0⤋