Does relative fitness make a difference?
I would like to know how this correlated with the measured fitness of the study cohort. For a gent who does the typical life progression and lets himself get weak as he ages, enthusiastic sex is an increasing strain on the system. Some guys instead work to stay fit and strong as they age. Do the above-average fitness guys suffer this effect as well?
This matters to me, since I'm working hard on being fit (not merely not-fat) with a mind to handling age better. Being a gnarly and strong old dude I hope to have good luck with the ladies (or lady, if I'm in a good partnership). Shame to think that would KILL ME.