>Sometimes I comb my hair, or bite my fingernails. You don't even need to comb your hair to leave DNA all over the place. A normal person will lose 50-100 hair

>Sometimes I comb my hair, or bite my fingernails. You don't even need to comb your hair to leave DNA all over the place. A normal person will lose 50-100 hairs every day.[0] Also, everyone sheds dead skill cells, and certain dermatological conditions can exacerbate matters. [0] http://www.aad.org/dermatology-a-to-z/diseases-and-treatments/e---h/hair-loss http://www.aad.org/dermatology-a-to-z/diseases-and-treatment...