90% of your happy hormone is produced in your gut! Are you in fight and flight or rest and digest? It doesn’t mean you’re happy as Larry with this 90% but it means your gut is happy and that has a positive affect on your brain. Your vagal nerve is apart of rest and digest and it connects your brain to your guts! Simply breathing in and humming on the out breath stimulates vagal nerve to have a positive affect of your gut! Hum yourself happy!