Elf on the Shelf VIPs surprise sisters amid Christmas flight delay Watch father and son share emotional hug after finally meeting Caregivers are in crisis. They told USA TODAY they want to see change.

When it comes to intestines, it sure seems like two are better than one. I asked my friend Franck Carbonero why that is. He’s a microbiologist at Washington State University. He studies the bacteria ...

The mouth starts the digestion process by breaking food down into a more easily digestible form. It does this through a combination of mechanical and chemical digestion. After people take food in ...

Hannibal Person does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Everyone has bacteria in their gut. They play a key part in digestion. But these bacteria live mostly in your large intestine, or colon, not your small intestine. When too many of the wrong kind of ...

The Conversation is asking kids to send in questions they'd like an expert to answer. Owen, age 4, wants to know how your body makes poo. An expert explains. Much of the food you eat is absorbed by ...