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.

An excess of cholesterol can build up in the arteries, narrowing them and slowing or blocking blood flow to the heart. Take this quiz to learn more about cholesterol and its role in your health.

At any given time, millions of people in the U.S. are trying to lose weight. They spend billions of dollars each year on weight-loss products and services. Learn more about diets and weight loss by taking this quiz.

Find out how much you know about the newest dietary guidelines and how they differ from the old food pyramid.

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?

How much do you really know about those fat globules lurking in your food? Take this quiz and find out.

How much fiber should you consume? Is there more than one kind of fiber? What foods contain fiber? Test your knowledge about fiber by taking the Fiber Quiz.

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?

Knowing what causes heart disease and how you can prevent it can help you live a healthier, longer life.

Learn how to better manage your medications by taking this quiz.

Just because a drug is available without a prescription doesn't mean it's safe to take. Take this quiz and learn the ins and outs of OTC medicines.

The quicker you quit, the faster your body will recover. Consider these healthy answers.

Stress is a fact of life for most of us. Too much stress can have harmful effects on the body, mind, and emotions. Learn more about stress and its effects by taking this quiz.

If you want to eat healthy, is it necessary to cut out all those tempting treats and snacks? Take this quiz to find out.

Think all fats are alike? Think again. Take this quiz to learn about trans fats and their impact on your health.