Yep. Exactly. When we turned 65, we realized that we could get free gym membership and we joined a gym right away, "we" being my wife and I. We do everything together. We've been gyming ever since, with a short vacation from the gym during the Covid epidemic. We never did get Covid. Our focus has been strength work, an hour or so twice a week doing full body work at our limit. It's made us pretty much bomb-proof except for my heart issues, probably genetic. My wife and I do all the same things and her heart is doing fine.

Like the doctor in the video says, "Training is not exercising" and "The gym is a magical environment." I've built a plan that starts in October and runs through July and I have a training log. Been doing that for about 30 years now. What I do is not exactly what he advocates because I train for a particular sport, cycling, which is an aerobic sport. My desired outcome is stronger riding and more endurance. The health thing is a very important side benefit.

Weight training is sorta subsidized here in the US after age 65, free gym membership with your health care plan. (google) BTW, I've never been injured cycling.