You don't need it in your toothpaste or croissant.

HEALTH
Load up on tissues. Allergies are here to stay.
A landmark study looked at 1.2 million subjects to find out how much exercise is enough for your overall well-being.
Before you brush today, consider this: Poop is just the beginning of what could possibly be hanging out on your toothbrush.
It could be the difference between life and death, a new study finds.