HappyPants8 t1_j2d2yjx wrote
Probably because it provides a visual representation of controlling your breath rate
ElfMage83 t1_j2dg4l0 wrote
That's part of it, but the bigger reason is the concentration of carbon dioxide in the blood. It's not that we need more oxygen, it's that we need less carbon dioxide.
It's a fine balance.
Viewing a single comment thread. View all comments