How can I get more oxygen to my blood, body, heart, and brain? And also rid of Carbon Dioxide because when you yawn, it brings more oxygen to the blood, body, etc and rids the body of Carbon Dioxide build-up.

So other then yawning and deep breathing, what are all the ways i can accomplish this? all inputs greatly appreciated!

Topics: blood, human anatomy, brain, heart, breathing, yawning, carbon, air, human body