Hi everyone, I'm 57 and I've always been active and fit but it's getting harder to stay that way. I've recently started CrossFit, which is very intensive. I haven't exercised so hard for over 20 years, and although I'm managing to keep up, it sometimes takes 3 or 4 days to recover from a workout.
I don't want to 'Bulk-up'. I need to be stronger, but I need to keep speed and endurance - any ideas?