Heredity and hormonal changes are important factors which contribute to hair
People who have ancestry from areas around the Mediterranean and
the Middle East have a greater tendency toward excessive hair growth than those
from Northern Europe and the Orient.
Hormones called androgens are directly
responsible for hair growth in both men and women. Normal changes in the hormonal
system occurring during puberty, pregnancy, and menopause may increase the level
of androgens or decrease the level of the female hormone, estrogen, resulting
in sudden, new hair growth on the body or face.
hair growth can also be a symptom of disease, especially one that involves a hormonal
imbalance such as Polycystic Ovary Syndrome (PCOS), Ovarian & Adrenal Tumors,
Cushing's Syndrome, Adrenal Hyperplasia, and Hyperthyroidism.