The vagus nerve connects your brain to many organs throughout the body, including the heart, lungs and stomach. Stimulating this all-important nerve has been shown to help treat a wide variety of health conditions, including depression, anxiety and GI distress. The nerve is connected to your vocal cords and the muscles at the back of your throat, so it’s easy to give it a little loving care – and settle an anxious stomach – by singing, humming, chanting or gargling for 45 seconds.