I actually work with a guy thats 5'6 36 and 112lbs, no joke, it does happen. If your 42 I would see a hormone therapist, and look to get on an Hrt program with human growth hormone - somatropin - and Test, I've already been to one but I'm only 27 so I have to wait 2 more years (birthday coming soon), they won't prescribe to anyone under 30 at the place I checked out. Not a big deal for me though but it can be pricey. 48 week Test and HGH is like $10,000 But for me there's no price on feeling good, so when the time comes I'm doing it!