What Is Hair Loss?
For the human body, hair develops everywhere except on the belly button, eyelids, and areas like the palms of our hands and feet. However, many hairs are so small that they are essentially undetectable. The protein keratin, which is formed in hair follicles in the epidermis of the skin, makes up hair. While follicles produce some new hair cells, old cells are expelled through the skin’s surface at a rate of 6 inches each year.