你是否羡慕别人拥有一头乌黑亮丽的秀发呢?你对头发又了解多少呢?现在就让我们一起来揭开秀发的秘密吧!1.认识我们的头发头发是指生长在头部的毛发.头发不是器官,不含神经、血管和细胞.头发除了增加美感之外,最主要的作用是保护头脑.一般人的头发约有10万根.在所有毛发中,头发的长度最长,尤其是女子,有的可长到90~100 cm,甚至150 cm.头发的颜色是由基因决定的,常见的有黑色、金黄色、棕色及红色等,当人类衰老时,头发通常会变成银白色.科学研究证明:头发的颜色与头发里所含的金属元素有关,黑发中含有铜、铁和黑色素,当镍元素的含量增多时,头发就会变成灰白色,金黄色头发中含有钛元素,红褐色头发中含有钼元素等. Do you envy other people have a shiny black hair it? How much do you know about the hair? Now let us uncover the secrets of the hair! 1. Know our hair Hair is grown in the head hair Hair is not an organ, does not contain nerves, blood vessels and cells. Hair in addition to increasing beauty, the main role is to protect the mind. Most people have about 100,000 hair. In all hair, the longest hair, especially Women, some can grow to 90 ~ 100 cm, or even 150 cm. Hair color is genetically determined, common are black, golden yellow, brown and red, etc., when human aging, the hair will usually become silver-white Scientific research shows that the color of hair is related to the metal elements contained in hair, while the black hair contains copper, iron and melanin. When the content of nickel increases, the hair becomes grayish white and the golden hair contains titanium , Red-brown hair contains molybdenum and other elements.