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

There’s evolutionary advantage to having excess lung capacity relative to normal needs. Most of the time we don’t need it, but it significantly improves your chances of staying in the gene pool if you have it when it’s needed.