Is your hair dead cells?

Tiny blood vessels at the base of every follicle feed the hair root to keep it growing. But once the hair is at the skin's surface, the cells within the strand of hair aren't alive anymore. The hair you see on every part of your body contains dead cells.

Thereof, how is hair created?

Hair is made of a tough protein called keratin. A hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft.

What is the cause of hair growth?

A muscle called an erector pili muscle attaches below the gland to a fibrous layer around the outer sheath. When this muscle contracts, it causes the hair to stand up which also causes the sebaceous gland to secrete oil. The sebaceous gland is vital because it produces sebum, which conditions the hair and skin.

How long does hair grow before it falls out?

New strands of hair, which have an average life cycle of 2 to 7 years, replace those that we lose daily. Each hair follicle produces a new hair, which then grows in successive cycles before falling out. The life cycle of a hair is divided into three phases: anagen, catagen and telogen.
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