This article is reminding me of a study a few years back that suggested that (provided you’re otherwise healthy and able bodied) you can get into any level or shape you want (if you put in the work of course) up until 60-something. Then you hit an age wall where about the best you can do is maintain what you’ve got. Suggesting that countering that 40-something aging event by pre-gaming for the 60-something aging is a smart plan.