Hair is a long, thin filamentous outgrowth of the outer layer of skin (the epidermis) in mammals and other animals. It is a characteristic trait, and it makes the skin look shiny, lustrous, and healthy. Hair also serves important functions in humans, such as providing warmth when it is cold and wicking sweat when it is hot. Moreover, it is the source of the sebum that may protect the skin from infections and viruses, and it may even provide a little cushioning if one falls.
The structure of hair is quite complex, but it is essentially composed of two main parts: the hair follicle and the hair shaft. The hair follicle is the site where the hair is generated and where the cells that compose it are located. Each strand of hair is anchored to the skin by the epidermis, with tiny blood vessels at the base of each follicle that nourish it as it grows. However, once the strand of hair reaches the surface of the skin, the follicle ceases to supply it with nutrients. The strand is then covered by an outer layer of dead skin cells called the cuticle, which gives the hair its shine and luster.
Within the strand itself, there are proteins that give it strength and elasticity, including keratin, which is made of amino acids. There are also special cells that produce melanin, the pigment that determines your hair color. In addition, the strand is surrounded by a layer of lipids or fats that help to protect it.
Most people think of hair as something that just adds a bit of glamor to your appearance, but it does much more than that. Healthy hair is a reflection of how well you are taking care of yourself, and it can even be an indicator of vitamin deficiencies and other internal problems.
So take your hair seriously and make good choices when it comes to it. From swapping shampoos every once in a while to getting regular haircuts, there is a lot that goes into keeping your hair healthy and strong. Whether you want to have a wash and go, straight tresses, twistouts, braids or a natural look, healthy hair will give you the confidence that you need. So what are you waiting for? Start a new hair routine today!