This amazing video is making the rounds today. Rumour has it that Jean-Claude Van Damme did this in one take: Obviously the 53 year old is way more fit than most people his age, just like he has been his whole life. But I found it inspiring. Genetics seem to determine quite a bit about aging, particularly after you turn 80, but before that diet and lifestyle play a key role. And I love this reminder that people can and do challenge themselves physically throughout their entire adult lives. I feel it personally too: I’m about to start training for my first half-marathon, and I am just about as fit as I have been, at 42. My view of midlife includes strength and flexibility…so go, Jean-Claude. Plus, he is still mighty attractive. What gets you to the gym? Find the best workout for your body. Also, before you try anything like this, read how to prevent and treat sore muscles. You might also like:6-Week Slim-Down: A fitness expert's best wei... 6-Week Slim-Down: Your best weight-loss advic... Teens can get fit for free this summer Get a free workout at GoodLife on National He... Does exercise matter more than weight?