It’s a great way to get aerobically fit at any age over 20. But the older you get the more it’s perhaps the only level you should train at. There are people who say you should do some Vo2 max workouts once a week or once every 10 days past 40, but for me those are hard to recover from. I’d rather stack a lot of days and never not be able to workout.
But again, I need to lift.
