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Hair Facts


Some interesting bits and bobs about what hair is?

Hair is very important to us as human beings;

it has a physiological aspect – keeps the sun off our heads, and sweat out of our eyes

And a Psychological aspect – to show the opposite sex how virile and healthy we are. What gender we are and are of vital importance to our day to day identification of who we are.

We have over 100,000 hair follicles on our scalps (from birth) we do not grow new ones!

There are approx 5 million hair follicles on the entire body!

Hair is a dead appendage, which is to say that there are no nerve endings or blood vessels in it, so it cannot react to an external can break it, but you cannot infect it?

The hair follicle however is living and that is where most of the hair problems lie.

The hair bulb (thing which makes the hair) is one of the fastest dividing cells in the body...which is why hair is so affected by chemotherapy.

The hair is made up of three layers:

Cuticle: Overlapping scales of hard keratin which protects and binds the inner fibres of the hair.

Cortex: makes up the majority of the hair, from tightly wound protein fibres (bit like a rope).

Medulla: sometimes not even present (usually is a hollow in the middle of the hair).

Hair Growth Cycle

Hair on the scalp grows about .3 to .4 mm/day or about 6 inches per year. Unlike other mammals, human hair growth and shedding is random and not seasonal or cyclical. At any given time, a random number of hairs will be in one of three stages of growth and shedding: Anagen, Catagen, and Telogen.

Hair loss may not affect us physically, but can be devastating psychologically.

Find out more about Trichology >