Nearly 1 in 5 American adults will have a diagnosable mental health condition in any given year. The role of our gut biome in our health and well-being keeps unfolding and is an area of growing research. The gut includes every organ involved in digesting food and processing it into waste. The lining of the gut is often referred to as the "second brain". We've all felt emotions in our gut - gut feelings, stomach in knots and even butterflies. Amy also touches on the term "leaky gut" and how it activates the immune system.