here's a thought, as a heart attack survivor, who did cardiac rehab, became a runner, then , trained and completed the Marine Corp marathon years later, I came to learn that taking time off for rest and muscle recovery is just as important as those workouts. be careful not to play games in your head. harder and longer is not always better. train smarter and wiser for better results. know your heart rate numbers. check with your doctor. good luck http://brucejohnsonhearttoheart.comView Thread