Why is it that we don’t often breath to our full capacity, we take shallow breathes and rarely take full breath

Question

Why is it that we don’t often breath to our full capacity, we take shallow breathes and rarely take full breath

In: 680

Answer 1

When your body is at rest, respiration doesn’t need to be working at 100%. The few times you take full breaths (yawns) is because you feel drowsy because of lack of oxygen