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."

George Burns was more athletic than you think he was. And he was a very social man. He loved people, he enjoyed life. He worked at living. Old George was a social lion, he got around and did things. That's the key right there. It starts with your brain.

There are so many health food nuts out there that eat nothing but natural foods but they don't exercise and they look terrible.

Stay in shape. And remember, daily exercise is a must. Plan for it, and do it. The rewards will be well worth it.

I train like I'm training for the Olympics or for a Mr. America contest, the way I've always trained my whole life. You see, life is a battlefield. Life is survival of the fittest... How many healthy people do you know? How many happy people do you know? Think about it. People work at dying, they don't work at living. My workout is my obligation to life. It's my tranquilizer. It's part of the way I tell the truth--and telling the truth is what's kept me going all these years.

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.

I can't afford to die. It would wreck my image.