My wonderful gym has classes aimed at older people. I usually take several a week. I thought I would try "Life Barre Fusion," my first Sunday class. It was hard! Turns out I hadn't noticed it wasn't an Arora (old folks) class. I did notice a lot of young people in the class, but assumed they were allowed to take our classes. I looked at my watch & we were only 20 minutes in: could I survive another 25 minutes? But I'd forgotten what time the class started & we were actually almost to the end. I'm glad I went, although I would never have gone knowingly, & if I can walk tomorrow, I'll consider taking it again.