Hair

Hair is a thin, threadlike outgrowth of dead cells from the skin, commonly found on mammals and covers the body or body parts. Humans have hair all over their body in varying densities. Apart from small filamentous hair growth all over the body, humans have dense and long hair growth found elsewhere on the body.

Humans have around 100,000 hair follicles over their head. The absence of these follicles over the head is termed as alopecia, commonly known as baldness. Hair loss is getting more and more common these days. The growth of hair and its density largely depends upon race and hair colour. Caucasians have the most hair density and average growth rate while blacks have medium density and slower growth rate. On the other hand, Asians have fast growing hairs with the lowest density.

Humans have indulged in caring and styling of the hair. Decorating hair has gained importance in almost all societies, which has played a significant cultural and social role. Contemporary cultural and social conditions have greatly influenced the style of hair people maintain. Maintaining long hair is a lifestyle that is practised by people around the world. There are several hair care and hair styling products that are available in the market. Hair dressing is a way of personal expression and has also become a realm of artistic expression. Hair products and hair styling has today become a major industry that help people to look more beautiful than ever before.