The funny thing is, I really feel it if I don't run. I start getting sluggish, and I feel like I need to do it. That's how I know that the workouts are working

Quote

“The funny thing is, I really feel it if I don't run. I start getting sluggish, and I feel like I need to do it. That's how I know that the workouts are working - I miss them if I don't have them.”