Experts are increasingly urging people to know their BMI, a figure that takes into account not just weight but also height to indicate body fat.

The more active you are, the more calories you burn. Running or jogging, for instance, burns more calories than bowling.

Drinking can be an expensive habit. While you may not notice a dollar here or two dollars there, consider how much you spend per week and per year on alcohol.

There isn't much good that can be said about smoking. Now, on a positive note, do you know how much money you can save if you quit smoking today?

Your target heart rate is the range at which sustained physical activity - running, cycling, swimming laps, or any other aerobic exercise - is considered safe and effective.

Do you know your risk factors for high blood pressure? You can’t do anything about some risk factors. But other risk factors can be changed. Learn about the risk factors for high blood pressure by taking this quiz.

True or false: A drug-alcohol interaction can lead to extreme drowsiness and other effects. Do you know the answer to this and other questions about drug interaction?

Answer this one: Which ethnic food offers healthful, low-fat choices?

Answer this one: Why is lack of regular exercise a major risk factor for heart disease?

True or false: Antidepressants may cause low blood pressure?

Nicotine, one of the main chemicals in tobacco, is the primary reason that smoking is so addictive. Even though most smokers know that smoking is bad for them, they find it difficult to quit because of the nicotine's effect.

True or false: There's no way of predicting if or when someone will have a stroke.