You know you're getting old when your body won't do the things you once asked it to do. Unfortunately, we are not given bodies that last forever. That's only going to come later if you're a believer. But in the meantime, we have to make do with what we're given.
Sadly, the body even loses some of its ability to hold its shape as we get older, as we all have dscoverd - or will discover - at some point. This might be most true of the legs. It's nice to know though, that there's the technology in activa compression stockings to help counteract the effects of aging and the loss of body muscle tone.