Berries are the healthiest fruit, offering potential protection against cancer and heart disease, boosting the immune system and acting as a guard for the liver and brain.

Tobacco smoke contains chemicals that weaken the body's immune system, making it more susceptible to disease and handicapping its ability to destroy cancer cells.

It really is a great drug for heart disease.

It's as important for children to know how to prevent heart disease, cancer and diabetes as it is for children to learn geography, ... These are important life skills that are not intuitively obvious.

Spinach is not only tasty, but it can help prevent osteoporosis, heart disease, colon cancer and arthritis. There have also been recent studies that suggest eating spinach may significantly lessen brain damage from strokes and other neurological disorders.

Studies of immigration show that this resistance to heart disease is not just something in African or Chinese genes. When people move from low-risk to high-risk areas, disease rates skyrocket as they adopt Western diets and lifestyles.