There's more to strength and weight training than meets the eye. Sure, working out with weights improves strength and muscle tone. It can help you lose weight by improving your metabolism. Now research shows that training with weights can also reduce your risk of heart disease.

A study conducted at Harvard University showed that men who did strength training for at least 30 minutes a week reduced their risk of coronary heart disease by 23 percent, compared to others who did not train with weights.

To minimize your heart disease risk as much as possible, make sure you're also doing regular cardiovascular exercise such as running or walking.