This was going to be a response to Lisa's comment below, but it was too long so now it's a post. I took a yoga class a few years ago at the Senior Center near my office and I was the youngest of about 10 women. They had various complaints - knee problems, obesity, back issues, and the instructor was in her 60's and took it VERY EASY. That was my first yoga class so I thought, "how relaxing!" It was all about the breathing and moving extremely slowly. How peaceful! Then one day a substitute came in who was MY age and ramped things up a bit. (By "a bit," I mean we supported our shoulders with blankets and had our lower backs and legs up on the wall.) You should've heard the complaints: I can't do that with my back! That hurts my knee! This isn't how Ethel (not her real name) does it! Then somebody farted. Yep, push old ladies and they're gonna fart. I'm not blaming - I fully understand it comes with age, so my time is coming. I just hope you're not in yoga class with me when it does.
Oh, and imagine my horror when I show up one day and the news channel is there to do a special on exercise and the elderly!