Have you ever looked at old people’s hair? most of their air are either white or grey. It is a common knowledge that our hair turn white when we get older. There are also some exceptions, such as me, I am only 18 and I already have a lot of white hair. Why do these things happen? What cause our hair to turn white and how can we prevent it?
At the base of the hair follicle, there are cells called stem cells. It was responsible for replenish the keratinoctes and melanocytes. melanocytes stems produce melanin, which colored your hair. Our hair color actually depend on the combination of melanin, Brown or black and yellow or red. The number of melanocytes stems decrease when you get older. when most of the melanin were lost, the hair will appear grey or silver. In the end, the hair lost all of its melanin, then there will be no color on the hair, so it become completely transparent. But the transparent hair appear white in our eyes. LiveStrong
Age isn’t the only cause of white hair, genes are big factories. That is the reason why many young people also have white hair. There is a thing in our genes called melanogenic clock, it knows when our parent’s hair turned grey, and we will follow them. If you have grey hair since you were young, your children are very likely to have grey hair at young age. other factors such as lack of Vitamin B12 intake and stress can also cause the hair to turn grey before it supposes to be. In 2009, a Japanese study find a thing called genotoxic stress, which can damage DNA by deplete the melanocyte stem cells. This is not the daily small stress that everyone has. Study found out that normal people’s melanocyte function decrease 10-20% every 10 years after age 30. By age 50, 50% of the people will be half grey. gaizupath todayifoundout howstuffworks
There are ways to slow down the process of hair turning grey. Consume enough vitamins such as B12 can help you to prevent grey hair. Eat the food that contain Iodine can also help prevent the grey hair, such as fish, bananas and iodized salt. Also, don’t be too stressful, try to relax sometimes. Have hope in life even when you are desperate. Think of your beautiful hair! stylecraze