It's no secret that teens don't smell all that pleasant. But before you blame them, read this article. The unpleasant scents may serve several important purposes.
mothers and infants
Mothers and newborns form special bonds from the moment of initial skin contact, if not from all the life kicking about within them in the last few months of pregnancy. Those bonds also form through eye contact and smell. A new study looks at “maternal chemosignals” in the bonding process.