After three years of research, including examining 503 pieces of fluff from his own belly button, Georg Steinhauser has discovered a type of body hair that traps stray pieces of lint and draws them into the navel. Dr Steinhauser's observations showed that "small pieces of fluff first form in the hair and then end up in the navel at the end of the day." Chemical analysis revealed the pieces of fluff were not just made up of cotton from clothing. Wrapped up in the lint were also flecks of dead skin, fat, sweat and dust. Unfortunately, further study has failed to yield a hair or fiber that would give Dr. Steinhauser the last three years of his life back.