A few months ago, I glanced down at my Apple Watch Ultra and saw something I wasn’t expecting: VO₂ Max: Below Average. I’ve been active most of my life. I walk. I do some strength work. I’m not sitting on the couch eating chips all day. So that rating stung a little. But here’s the thing — I didn’t panic. I got curious. And over the next several weeks, I started doing something small and consistent that actually moved the needle. I’m going to share exactly what I did, why it works, and what my numbers look like now. First, What Is VO₂ Max — and Why Should You Care?…