Here are some Interesting Facts About Gray Hair that you might not know.
CAUCASIANS GO GRAY EARLIER
Scientists are not exactly sure why, but ethnicity makes a difference when it comes to going gray. Caucasian people tend to go gray earlier. People with red hair are likely to go gray sooner than those with other hair colours.
GRAY HAIR GROWS FASTER
Grey hair has a faster average growth rate than hair with pigment. This is related to hair thickness as well as other factors (Eur J Dermatol, 14: 28–32, 2004).
A HEALTHY DIET SLOWS DOWN THE ONSET OF GRAY HAIR
Low levels of vitamin B12 can cause loss of hair pigment. ( source: Dr. Karthik Krishnamurthy, director of the Dermatology Center's Cosmetic Clinic at Montefiore Medical Center, N.Y)
AGING IS NOT THE ONLY CAUSE
The most common cause of gray hair is aging, however it is not the only cause. Genetics play a role as well. If your parents hair turned gray early then it's likely that yours will as well.
THERE ARE DIFFERENT SHADES
Shades of gray vary from light to dark. This is because of the amount of colour pigment that has been lost. Gray hair has a reduced amount of pigment and white hair has none at all.
DYED GRAY HAIR IS BECOMING INCREASINGLY POPULAR
Many people hate the thought of their hair going gray. There are also those who love silvery gray tones. Some people deliberately dye their hair gray to achieve looks like the one below. via