Thanks for the link, it's worth looking up Louis Simmons, the owner of Westside Barbell, who's been coaching dozens of powerlifting world record holders for decades and personally kept on juicing and lifting heavy weights his whole life (he must be in his late 60s now).
If he is to be believed he's in a better shape than most of us.
Not sure how beneficial or harmful is lifting heavy weights, but I've noticed that for slim/skinny people the idea is often terrifying, and that works for doctors as well. From experience I got more often back issues (have been carrying an herniated disc for over a decade) playing tennis and golf than lifting heavy (heavy for me at least, i still love single and doubles but strength is hard to regain). It took me several years and many many visits to the doctors to deal with back, shoulder and knee injuries from playing golf and tennis before I decided to start lifting again (after 14 years break), because a skinny doctor treating me for sciatica, 7 or 8 years after I last lifted (didn't do much sports all that time) told me I would go straight to surgery if I ever played with 200kgs again (what I squatted younger at 83kg bodyweight, also what I squat now but much heavier
hoping that by the age of Nick Best i'll have improved, rather than go around in a wheelchair ).
Than later after starting to lift again, while my knee (meniscus degenaration, from tennis and golf apparently) was getting better after starting to squat and deadlift again, another skinny doctor who had seen the knee earlier advised me to rather go jogging - it didn't matter I could squat without pain yet would scream if my feet bumped into anything, like a stone on a road
But sure freak injuries do happen when lifting free weights, deadlift is particularly scary (fwiw after getting hurt a couple of times since lifting again doing conventional dl I switched to sumo, which puts less stress on the lower back, and decided to deadlift roughly the same weights I squat only. Every minor DL injury meant a long stop and huge step back in training, and I read about several lifters who had terrible back injuries from DL. There are also freak squat injuries but they have usually to do with the knees rather than the back - although it's easy to imagine one breaking his neck while squatting without safety bars or strong spotters).
https://en.wikipedia.org/wiki/Louie_Simmons
