Hats and wigs cause hair loss. 100 strokes of the hair brush daily will create healthier hair. Permanent hair loss is caused by perms, colors and other cosmetic treatments. Women are expected to develop significant hair back thicker. Shaving one's head will cause the hair to grow back thicker.
Dandruff causes permanent hair loss.
There are cosmetic products that will cause the hair to grow thicker and faster. Stress causes permanent hair loss. Hair loss does not occur in the late teens or early twenties. Hair loss affects only intellectuals. There is a cure for androgenetic Alopecia.