Biological Interview Question:

Explain the science behind the hair becomes white or grey with ageing?

Submitted by: Muhammad

Melanin pigment is responsible for the hair colour, and research as shown that hydrogen peroxide interferes with its functioning. With aging catalase enzyme production diminishes which regulates the breakdown of hydrogen peroxide. When there is an excess accumulation of hydrogen peroxide in tissues it will cause de-coloration or whitening of hairs.
Submitted by: Muhammad