The 4-7-8 breathing method is a technique that involves breathing patterns that calm the nervous system. It involves placing the tongue tip behind the upper part of the front teeth, blowing the air completely out of your mouth, closing your mouth and exhaling through your nose while counting to 4 in your mind, holding your breath and counting to 7 in your mind, opening your mouth and exhaling entirely while counting to 8 in your mind. This sequence should be repeated at least three times.