There is no fountain of youth, What you put into your body is what you get out of it. You would not feed your dog a coffee and doughnut for breakfast followed by a cigarette. You will kill the damn dog.
Jack LaLanneYou should be proud of what you're doing, but not conceited. If you can't be proud of yourself, you're a failure. And discipline. To do anything in life you have to have discipline. To accomplish anything, you have a goal, challenge yourself, and work until you accomplish that goal. Practice what you preach.
Jack LaLanneTwelve to seventeen minutes is plenty on the treadmill--if it's done fast. That's all you need for cardiovascular benefit. You don't need to spend that extra time unless you are over weight and you need to burn off extra calories. Do it vigorously, like somebody is chasing you. You've got to do it hard. Otherwise, if you just take it easy and do it longer, you are spending all that time when you don't need it. Use that extra time with your weights instead.
Jack LaLanne