Pregnancy does a number on the body — and in ways you may not have fathomed. From morning sickness to drastic emotional changes to physical aches and pains, carrying a baby to term is no walk in the ...

You probably don’t think much about teeth until a dentist brings them up. But across the animal kingdom, tooth counts can get ...

Add Yahoo as a preferred source to see more of our stories on Google. What if a missing tooth could be regrown, not by nature, but in a lab using your own cells? Scientists at King’s College London ...