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.

You'll need to know mom's and dad's current height to help calculate the estimate of how tall the child will be when she or he becomes an adult.

It is important to know your estimated due date in order to help plan for the baby's birth.

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.

True or false: Fifty percent of the lumps women find when checking their breasts aren't cancerous.

True or false: If you don't get enough calcium in your diet, your body will take the calcium it needs from your bones.

According to the American Cancer Society, an estimated 3,710 women will die from cervical cancer in the United States during 2005. Death rates are dropping, though, because more women are being screened for it. To learn more about cervical cancer and prevention, take this quiz.

Answer this one: The STD chlamydia is a bacterium that is transmitted through intimate physical contact. What's the most common means of transmission?

Cancers of the colon and rectum together are among the most common cancers affecting Americans, according to the NCI. They occur most often in people over 50 years old. Test your knowledge of colorectal cancer by taking this quiz.

Answer this one: Depression peaks at certain life stages. People in which group are likely to experience it most often?

Answer this one: Which is the most important hygiene habit to teach young children? Learn the answer to this and other prevention questions by taking this multiple choice quiz.

Your doctor can't give you the best care if you don't say what's really going on. This true-false quiz will help you prepare for your next visit.

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: In which situation(s) should you call an ambulance instead of driving to the hospital emergency department?

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

Test your knowledge of which behaviors are most helpful and harmful to your developing baby.

As a woman, do you know what your risk is for developing heart disease? You might be surprised. Take this quiz, based on information from the American Heart Association, and see how much you know about heart disease in women.

Answer this one: Although mammograms can identify tumors at a very early stage, the tumors may have been growing for how long by the time they show up on the X-ray?

Answer this one: A woman is considered to have begun menopause after she has missed how many menstrual cycles?

Multiple sclerosis is a disease of the central nervous system, the brain and spinal cord. Its symptoms can range from benign to severe. Find out more about this mysterious illness by taking this quiz.

True or false: Studies suggest that people who consume lots of antioxidants (vitamin C, vitamin A, and carotenoids) from food sources have a lower cancer risk.

There is an epidemic of obesity in this country, health experts say. But what is obesity? How is it measured?

Answer this one: How many symptoms have been tied to PMS? If you guessed more than 100, you're right.

Take this quiz to find out how to cut your risk of developing diabetes.

Answer this one: Which is the most common bacterial STD?

Breast cancer is the most commonly diagnosed cancer in women (other than skin cancer). The American Cancer Society reports the breast cancer death rate is declining, probably because of earlier detection and improved treatment. This short assessment will help you determine if you have major risk factors for breast cancer.

This assessment is valid for women between the ages of 21 and 69 who have had sexual intercourse at least once and who have not had a hysterectomy with removal of the cervix.

Coronary artery disease (CAD) is the most common type of heart disease. It is the leading cause of death in the United States in both men and women. Determine your risk for developing CAD using this assessment tool.

This questionnaire can help you find out how likely you are to have depression.

Osteoporosis is a disease that slowly weakens bones until they break easily. People who suffer a broken bone related to osteoporosis often experience a downward turn in their overall health.

A woman's risk of getting invasive ovarian cancer during her lifetime is about 1 in 71. This short assessment will help you determine if you have major risk factors for ovarian cancer.

The questions in this assessment ask about risk factors—conditions that may put you at risk for developing type 2 diabetes. The American Diabetes Association (ADA) states that the more risk factors you have, the more likely you are to develop diabetes.