Gosh - I'm not too sure about the yoga stretching strap - I don't think I'd ever walk again after using it! I was reading that exercise increases the immune system, so I've decided that DH and I will start following some YouTube exercise videos. We've done a couple of Jo Wicks Senior ones. After yesterday's session of 14 minutes, a suggestion popped up alongside it for dancing exercises to popular songs. It's brilliant. No inane chatter, just brilliant music and dancing. We followed along to Sugar Pie, Honey Bunch and then Elvis's Crocodile Rock. So another 10 minutes of heartbeat raising dancing after Jo. There's lots of choose from. And all free.