though i'm upset i can't swim now because of some oral surgery that i don't want to chance infecting, normally i swim quite a bit. i think it is the best low-impact exercise you can do for yourself and i credit it, in no small part, for helping me recover from a serious back injury many years ago.
what could be more ideal than exercising in a medium which creates resistance so that muscles are worked but also provides buoyancy so as to reduce the impact on your body of even your own body weight.
"off with their heads"~~dr. joseph-ignace guillotin
"life should begin with age and its privileges and accumulations, and end with youth and its capacity to splendidly enjoy such advantages."~~mark twain - letter to edward kimmitt 1901