The human body contains many natural polymers, such as proteins and nucleic acids. Cellulose, another natural polymer, is the main structural component of plants. Most natural polymers are condensation polymers, and in their formation from monomers water is a by-product.
Alopecia areata is one type of hair loss that typically causes patches of baldness. In some cases, total baldness develops. In many cases, the hair re-grows, typically after several months. In some cases, the hair loss is permanent.
There are a few common causes of hair loss, such as : 1) Lack of Vitamin B and C, the mineral zinc, iron and sulphur. 2) Crash diet can result in more hair loss than gradual weight loss. 3) Traumatic experience and stress. 4) Menstruation and pregnancy (causes temporary hair loss due to hormone imbalances)