Learn how to get ready to quit, how to quit, and how to stay quit for a healthier, smoke-free future.
Rheumatoid arthritis (RA) is a disease of the joints, most often affecting the hand, wrist, foot, and knee. The joints become inflamed; over time, this inflammation can lead to joint damage, chronic pain, and loss of function. This video offers a detailed look at RA and how it develops.
Ringworm is a general term used to describe a very common type of skin infection. It is not caused by a worm at all, but by a fungus. In this video, you'll learn more about the fungus that causes ringworm and what steps you can take to prevent the infection.