Individuals who suffer from trichotillomania often pull one hair at a time and these hair pulling episodes can last for hours at a time. More info: http://www.trichstop.com/

5. Individuals who suffer from trichotillomania often pull one hair at a time and these hair pulling
episodes can last for hours at a time. Trichotillomania can go into remission, whereby the
individual suffering from the condition may not experience the urge to pull for days, weeks,
months and often even years in some likely cases.