Can stress, drugs or trauma cause hair loss?
High levels of stress have been known to cause some hair loss. Autoimmune disease, the use of certain drugs, illness and severe nutritional deficiency may also cause hair loss or promote early [male pattern baldness]. Trauma to the head accompanied by scarring can cause permanent damage to hair follicles. Even tight hairdos like braids can create tension that can inflame hair follicles, destroying them and stopping hair growth.
