Great episode on Oprah. To sum it up, we need antioxidants to prevent aging. Think of an apple when you cut it and the "rust" that forms due to oxidation. Squeeze lemon juice on it and it preserves it. We need the same for our bodies.

According to Dr. Oz:
Food
Antioxidants (5 servings a day)
In brightly colored foods like blueberries, sweet potatoes, broccoli, tomatoes and acai
Green and white tea (4 cups a day)
Red wine or Concord grape juice (1 glass a day)
Fiber (25 grams a day)
In fruits, vegetables, beans, brown rice, whole wheat pasta, "100 percent" whole grain bread and chia
Omega 3 fatty acids
In roasted or ground flax seeds, walnuts, hemp, salmon and spirolina algae
Olive oil (1 to 2 tablespoons a day)
Do not heat this delicate oil to smoking point or it will be damaged and lose its benefits

Exercise
Get your heart rate up (3 times a week)
Find your target exercising heart rate: 220 - [your age] X .80
Do strength training (30 minutes a week)
Meditation
Yoga, prayer or meditation (5 minutes a day)
Releases nitric oxide, which relaxes blood vessels

Sleep and Sex
Sleep (7 to 8 hours a night)
Monogamous sex (2 to 3 times a week)

Vitamins
Vitamin D (1,000 units a day)
Calcium (600 mg twice a day) with Magnesium (200 mg twice a day)
DHA Omega-3 (600 mg a day)
Baby aspirin (2 a day, for a total of 162 milligrams)
Multivitamin (Take half in the morning, half in the evening)
Pre-menopausal women need a multivitamin with iron and 5,000 units of vitamin A. Men and postmenopausal
women need just 2,500 units of vitamin A.