4-7-8 Breathing

How to do it

1. Sit with your back straight and put the tip of your tongue behind your upper front teeth.
2. Breathe out fully through your mouth.
3. Breathe in quietly through your nose for four seconds.
4. Hold your breath for seven seconds.
5. Breathe out fully through your mouth for eight seconds, then start the next round.
6. Do no more than four rounds at a time for the first month.