5 Issue: Gray hair 白發
The unavoidable truth is that gray hair is genetic, and aside from
coloring, you're stuck with it. Most people only have a handful of hair
cycles (remember, a cycle is 6 - 8 years) where the
pigment-producing cells that surround the follicle and transfer pigment are working at their best.
The process just gets . . . tired. Dr. Mirmirani can't confirm the old wives' tales that tell you if you
yank one gray hair, five more will sprout up. However, once a fiber is gray--even if you pluck it--it
will more than likely grow back in gray again.
你應該堅信,除了染色外,白發是遺傳的,這是不可避免的事實。大多數人的頭發周期不長(記住,一個周期是6 -8年),此時色素細胞包圍毛囊,色素的產生處于最佳狀態。然后過程變得......疲勞。馬諾莫尼醫生不能確認老婦人講的如果你拔一根白發,五根將會長出來的傳言。然而,一旦頭發纖維變白,即使你拔掉頭發,長出來的很可能還是白頭發。