I can't do it............I would LOVE to go the gym every day....if I went by "feel", I wouldn't, but if I went by the way my MIND feels, I would be there daily.......Sure, I get sore, achy, etc.......that's how I know to take the day off, but I have gone 10 days in a row before......OT? Yes, but the mind is a very powerful tool..........I bet it's been 2 years since I went a day without breaking a sweat..........cardio, something........