Have you ever “had a gut feeling”? If so, there’s actually more to that than you might think.

While it isn’t capable of “thought” like the brain, our gut plays an important role in giving us feedback about our overall wellbeing. Medical science has identified a clear link between our digestion, our physical health, and even our state of mind. That’s why the human digestive system is often referred to as the second brain.

This article from RealSimple describes how your other brain works. It also provides tips for maintaining healthy digestion and provides insight into you what a grumpy gut might be telling you.

For a more technical explanation about "the second brain," check out this post from Johns Hopkins: The Gut-Brain Connection.