每日口說挑戰 為什麼頭髮會變灰？Why Your Hair Will Turn Gray

今日挑戰句子

There are many factors that can change the pigment of your hair, both internal and external. Things such as genetics, hormones, age, the climate that you live in, toxins and even chemical exposure can all affect hair pigmentation.

改變頭髮色素的原因有很多，包含內在因素和外在因素。像是基因、賀爾蒙、年齡、你居住地的氣候、毒素、甚至是暴露在化學因子下，都可以影響頭髮的顏色。