People don't realize how much of this stuff you get by the end of the day. High blood pressure is from all this high-fat eating. Do you know how many calories are in butter and cheese and ice cream? Would you get your dog up in the morning for a cup of coffee and a donut? Probably millions of Americans got up this morning with a cup of coffee, a cigarette and a donut. No wonder they are sick and fouled up.

Physical fitness takes commitment to exercise just as it requires good nutrition. But it doesn't have to be painful. Just the opposite: Vigorous exercise actually is stimulating. It boosts your energy levels, invigorates your mind, and just feels good afterward. The hardest part, of course, is getting started.

You can exercise vigorously and eat junk and get by. But you can't eat perfectly and not exercise. Look at many athletes today; they are human garbage cans. They eat anything, but they exercise so hard they burn it up. But why not exercise and put the right fuel in too?

Many so-called spiritual people, they overeat, drink too much, they smoke and don't exercise. But they do go to church every week and pray 'Please help my arthritis. Please help me bring up my strength, make me young again.'

The brain's preferred source of fuel is glucose/carbohydrates. And when you go on a low-carb/high-protein diet, your brain is using low-octane fuel. You'll be a little groggy, a little grumpy.

Your age is the sum total of your physical condition, the condition of your mind, and how you feel.

Sometimes people - especially people over 40 - underestimate what they really are capable of. They believe they're not capable of doing something great. I tell people who are over 40, "I don't want your best. I want better than that. I want better than what you perceive your best is."