On: With greater longevity, the quest to avoid infirmities of aging is more urgent

[52-6F-62]

Be careful with crossfit training, though. If you favour crossfit style classes, just make sure you focus on your form.

The worst form I've ever seen has come out of crossfit classes. The way people learn to use ergometers in those classes makes me cringe—just asking for a ruined lower back. And lifting—it just looks painful.

Form, form, form. Can't stress it enough.

[mcv → 52-6F-62]

They pay a lot of attention to posture when lifting. Not so much when rowing, and at first I sometimes felt it in my lower back. There's a lot of focus on strengthening core muscles though, and I now feel like my abs and back are a lot stronger already, and I haven't felt any back trouble in ages. (Well, weeks, I guess; I've been doing this for half a year now.)

[52-6F-62 → mcv]

Some groups are probably better than others for it, admittedly.

I just know I had seen some horrific lifting practices—or rather that no instruction was given except for "Go for it!".

That's good to hear.