I was at the Y today for a step class, and I looked around and the class consisted of me and 8 seniors. Man, those old farts can move! The class is 40 minutes of non-stop movement and it is exhausting. More than once I had to stop, take a drink of water and rest a minute. The instructor usually shows 2 ways of doing a move (an easier and a harder way)...by about half-way through the class I'm opting for the easier way every time, but most of the seniors in the class didn't stop for a rest, and took the harder route. Ridiculous! I couldn't keep up to them. I just hope in my old age that I'm that agile.