GETTING IN SHAPE FOR YOUR OLD AGE: Shockingly, weight training and higher protein intake help. Also Vitamin D.

Wow, who could have seen that one coming?

Also, this bit about muscle mass peaking in the early 40s is iffy. I certainly carry more muscle mass now than I did at 40, and in fact more than I’ve ever carried in my life, though I’m not exceptionally huge. The reason is that I exercise for that, while a decade ago I was more focused on cardio. But you see older bodybuilders in their 60s and even 70s carrying a lot of muscle. Maybe it’s less than they would have had in their early 40s if they’d started lifting at 16, but I don’t think the decline is as clearly programmed as these articles suggest.