RichM Yes, strenght training and proper nutrition and sleep is good for T-levels. Although (obviously) it will just keep your T-levels up to what is considered normal for your age (mostly). Try as one may, a 50 year old man will never reach T-levels of a 23 year old naturally. It will drop off with age.
T-replacement therapy has it’s uses but it’s also a trendy thing right now and I would wager that 80% of men doing it have no medical reason for it and they convince themselves “this is different from what bodybuilders do” but it really isn’t. It’s just that pro bodybuilding takes it to extremes.
Most men nowadays reaching for T-replacement therapy as some holy grail should prob just mind their diet and the way they train far better.