You're not going to have a high VO2 max if you are unhealthy and your body is not in good metabolic condition and your heart is not in good metabolic condition. You need kind of all of these parameters to be met to have a a very high VO2 max.

Overall, exercise is just going to improve the ability of our arteries to dilate when something called shear stress increases.

VO2 max is the... maximum rate of oxygen consumption for your body.