What is Premature hair graying
Grey Hair is a symptom of improper protein synthesis. Hair grows white when the colour pigment (melanin) ceases to be produced in the hair follicle and small air spaces take its place. Pigment cells located at the base of each hair follicle produce the natural dominant colour of our youth. However, as a person grows older and reaches middle age, more and more of these pigment cells die and colour is lost from individual hairs. The result is that a person’s hair gradually begins to show more and more grey. Individual hairs each have an outer layer (the cuticle) of overlapping flat cells, underneath, which is the thick cortex, which consists of horn-like keratin. The inside of the hair is made of softer, rectangular cells. Hair colour is determined by the concentration and depth of melanin pigment in the cortex – this produces the whole spectrum of hair colour from blond to black .