Also disciplined breathing techniques, Om chanting strengthens the lungs and regulates O2 flows. FWIW they do get sunlight. People need some sunlight. More

Also disciplined breathing techniques, Om chanting strengthens the lungs and regulates O2 flows. FWIW they do get sunlight. People need some sunlight. More specifically Mitochondria need sunlight or artificial sunlight from 600nm -> 1200nm.