If you notice periods of depression that seem to accompany seasonal changes during the year, you may suffer from seasonal affective disorder (SAD).

Rheumatoid arthritis is a disease that causes pain, swelling, and destruction of the joints.

No matter what your age, or how long you have smoked, giving up cigarettes is the ticket to a longer life. Find out more about the benefits of quitting by taking this quiz.

Psoriasis is a chronic skin disease that affects millions of Americans. Although it can affect people of any age, it occurs mostly in young adults. Find out more about this disease by taking this quiz, based on information from the National Institute of Arthritis and Musculoskeletal Diseases, the American Academy of Dermatology, and the National Psoriasis Foundation.

This quiz will help you build your knowledge of steps you can take to prevent prostate cancer.

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

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.

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

Take this multiple-choice quiz to answer your questions about teen health. Example: Routine physical examinations should be done how often during the teen years?