Day 21….congratulations on completing another week of the cardio commitment. Today your session is really easy. 15 minutes of foam rolling, tennis balling, massaging, stretching and whatever else you need to do. You should be doing this every day anyway, but if you don’t….here’s your chance to get started. You’ve already committed to setting aside 15 minutes today so you have no excuse not to. You will feel good. It’s a hurt-y good but it’s good.