To practice 4-7-8 breathing, find a place to sit or lie down comfortably. Be sure you practice good posture, especially when starting out. If you’re using the technique to fall asleep, lying down is best.
Prepare for the practice by resting the tip of your tongue against the roof of your mouth, right behind your top front teeth. You’ll need to keep your tongue in place throughout the practice. It takes practice to keep from moving your tongue when you exhale. Exhaling during 4-7-8 breathing can be easier for some people when they purse their lips.
The following steps should all be carried out in the cycle of one breath:
First, let your lips part. Make a whooshing sound, exhaling completely through your mouth.
Next, close your lips, inhaling silently through your nose as you count to four in your head.
Then, for seven seconds, hold your breath.
Make another whooshing exhale from your mouth for eight seconds.
When you inhale again, you initiate a new cycle of breath. Practice this pattern for four full breaths.
The held breath (for seven seconds) is the most critical part of this practice. It’s also recommended that you only practice 4-7-8 breathing for four breaths when you’re first starting out. You can gradually work your way up to eight full breaths.
This breathing technique shouldn’t be practiced in a setting where you’re not prepared to fully relax. While it doesn’t necessarily have to be used for falling asleep, it can still put the practitioner into a state of deep relaxation. Make sure you don’t need to be fully alert immediately after practicing your breathing cycles.