In addition to Greying the hair, stress causes people to literally pull their hair without knowing, resulting in hair loss by the physical action of tugging on the hair.
And while stress can play a factor in Greying the hair, it can’t turn hair white overnight; contrary to old wives' tale. Some researchers state that consistent mental and physical stress—over the course of many years—may potentially cause premature ageing of the body, including hair.
Scientists also state that Greying hair is a result of the hair building up too much hydrogen peroxide due to a reduced production of the enzyme catalysts which breaks down the hydrogen peroxide as you age.
So if it is possible to increase the production of the enzyme catalysts that breaks down hydrogen peroxide, would it not be logical to assume that the production of Grey hair would stop or reverse?
Of course science would love to do this with drugs, it has been estimated that the hair care industry, which is worth over 42 billion dollars, would love to sell you a patented drug for Grey hair reversal.
Another link to Grey hair production is thyroid issues which doctors claim can be reversed if the problem is corrected. Many home remedies used iodine or substances that are high in iodine such as seaweed and other sea vegetables that are believed to help strengthen the thyroid.
Vitamin B-12 deficiency has also been linked to premature Grey hair. Vitamin B-12 deficiency reduces the production of melanin, which is responsible for the colour hue of hair. The reduction of melanin will therefore result in the hair eventually turning Grey.