Muscle cells strengthen in response to intense exercise - whether you're 18 or 88. But the intensity is what's lacking in most people's workouts. And there are doctors who'll give you the advice, "Well, don't push it."

Twelve 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.

By exercise. I'll tell you one thing, you don't always have to be on the go. I sit around a lot, I read a lot, and I do watch television. But I also work out for two hours every day of my life, even when I'm on the road.

Thoughts are things. Negativity is what kills you... It's tough to do, but you've got to work at living, you know? Most people work at dying, but anybody can die; the easiest thing on this earth is to die. But to live takes guts; it takes energy, vitality, it takes thought. . . . We have so many negative influences out there that are pulling us down. . . . You've got to be strong to overcome these adversities . . . that's why I never stop.

What you need to do is get that tape measure out, and start measuring that gut. Then you start working out and you start eating properly till that gut gets down close to it was when you were in your 20's. Then you'll find out what your weight should be.

Never, ever get satisfied; keep the carrot in front of the horse.

I never think of my age, never. I could be 20 or 100. I never think about it, I'm just me.