We know that hair is the waste product of our body, but some people lose their hair and become bald as they grow old. Does this mean that the waste product in their body have reduced.

Kindly answer sir/mam.

No, hairs are not the waste products of our body. They are the extension of skin. They serve various functions such as insulation, protection, etc. For example: Hair present on the scalp provide protection, insulation as well as beauty. There are various reasons for hair loss such as deficiency of nutrients, pollution etc. 

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