The Science Behind The Gut-Brain Connection

So what is this gut-brain connection exactly? Well, let's go into the science. The human brain contains approximately 100 billion neurons, brain cells, nerve cells, right? The gut also has a nervous system. It's called the second brain, also known as the enteric nervous system. Enteric just means gut, fancy medical word. And this contains, get this, 500 million neurons. So there's five times as many neurons in your gut as in your brain. Now, there's a bidirectional highway between the brain-brain and the gut-brain, and this is called the vagus nerve. And it links our enteric nervous system with our brain and their central nervous system and it's sending and receiving signals all the time. So whatever's happening in your brain, mood, stress, emotions, impacts your gut function. And whatever's happening in your gut impacts your brain function. Right? Mind, body, body, mind. We talk about this. I felt sick to my stomach. I have gut feelings. Maybe you're so nervous, you had to run to the bathroom. Right? This is the gut-brain connection at.