Look, I am a bodybuilder so of course I will be in a similar condition to what I was in 70 and 75. That might be more difficult than getting similar size. Since turning 50 I discovered that I lost muscle first when I dieted. In 1970 I lost 20 pounds bodyweight in 2 weeks. No way I could accomplish that today. So, yes, it sucks getting old. Vision, hearing, tanning ability, strength, libido and hair diminish. Goodness knows what else in on the decline. So it is nice to know hypertrophy can still occur. That really is a gift from our ancestors.