4-7-8 Breathing

Created by Dr. Andrew Weil this is breathing exercise to help you relax: 

1. First, let your lips part. Exhaling completely through your mouth.
2. Next, close your lips, inhaling silently through your nose as you count to 4.
3. Then, for 7 seconds, hold your breath.
4. Make another whooshing exhale from your mouth for 8 seconds.

This is one repetition. Try to do at least 4.