Hair care
Scalp hair grows, on average, at a rate of about 1.25 centimeters per month, and shampoos or vitamins have not been shown to noticeably change this rate. Hair growth rate also depends upon what phase in the cycle of hair growth one is actually in; there are three phases. The speed of hair growth varies based upon genetics, gender, age, hormones, and may be reduced by nutrient deficiency (i.e., anorexia, anemia, zinc deficiency) and hormonal fluctuations (i.e., menopause, polycystic ovaries, thyroid disease).
Leg hair
Leg hair is hair that grows on the legs of humans, generally appearing after the onset of puberty. For hygienic or aesthetic reasons and for some sports, people shave, wax, or use hair removal creams to remove the hair from their legs: see leg shaving.