Well I’m willing to say, that if these exercises improve your erection quality because of erectile dysfunction, you could consider them to be healthy. This is mainly psychological health that is gained by the lowering of stress and disappointment during sexual activities. But I assume that most people on this site do not have erectile dysfunction, and I assumed that the poster probably does not have it. Am I wrong?
For anyone who does NOT have erectile dysfunction, and additionally has good quality erections and sex, I fail to see ANY health benefits. I haven’t seen any studies indicating that these activities generally improve the health of men or that they are recommended for the general population (in the way that regular exercise like jogging, riding a bike, and so on are recommended for “general health”). So have I missed these studies or is the medical establishment wrong?
Of course, I’m not saying that PE has no benefits. If someone wants a certain sized penis, bigger than the one they have, and they can achieve this goal, they could enjoy this luxury. But it wouldn’t improve their health or be anything more than a luxury.