Oxygen, SpO2 level elevate through simple process

you have to do it in spine erect or lay down position, put both the thumbs on naval, close the mouth, tip of the tongue should touch upper palate, and blow the breath without opening the mouth towards the naval direction
https://youtu.be/NjQZB5vR0jc

You have to do it in posture spine erect or lay down position, put both the tip of the thumbs on naval area with slight pressure on naval, close the mouth and tip of the tongue should touch the upper palate, and blow the breath inside the mouth without opening the mouth towards the naval direction

Drop me a line
smile@outlook.in