What Is VO₂ Max and Why Should You Care?

You may have heard the term VO₂ max before — especially if you’ve ever used a fitness watch or done any kind of endurance training. It sounds complicated, but the idea is actually pretty simple.VO₂ max is a measure of how much oxygen your body can use when you’re working really hard.Think of it as your body’s engine size.The higher your VO₂ max:The more oxygen your muscles can useThe longer you can work without getting exhaustedThe better your heart, lungs, and muscles work togetherIn plain English:👉 A higher VO₂ max means you can move faster, longer, and with less effort.But How Do You Improve VO₂ Max?