The second brain in our stomachs!

Hey! Marco here! Our own stomachs may be something of a dark mystery to most of us, but new research is revealing the surprising ways in which our guts exert control over our mood and appetite.
Not many of us get the chance to watch our own stomach’s digestion in action. Got a camera?

To accommodate a big meal your stomach has to expand from the size of a fist to around 2 litres. That's a 40-fold increase. We used to think that stretch receptors in the stomach told the brain when the stomach was full, time to stop eating. But it turns out that the hunger signals produced by your stomach are far more sophisticated than that...

Interesting...