Roughly half of the body’s VO2 max is determined by genetics. Age is also a factor. Improvements are nonetheless possible https://www.economist.com/science-and-technology/2026/03/27/should-you-track-your-vo2-max?taid=69ca44f71de6e000018af17a&utm_campaign=trueanthem&utm_medium=social&utm_source=voante
