Mastoidectomy can remove infected bone and growths from the middle ear. But it may not always improve your hearing in the affected ear. Read on to learn more.

Some chemicals cause burns. Others may be absorbed through skin or lungs, causing hidden damage.

A variety of exercises is best. Physical activity will slow further bone loss. It can also be fun.

If you have osteoporosis, you can do a lot to reduce its effect on your life. Knowing how to prevent fractures and spinal curvature can help you live more comfortably and safely with this disease.

Certain things can speed up bone loss or decrease bone growth. For instance, alcohol, cigarettes, and certain medicines reduce bone mass. And some foods make it hard for your body to absorb calcium. Learn more details here.

This exercise can stretch and strengthen your knee.

Rheumatoid arthritis (RA) is a chronic disease, but it doesn’t have to keep you from being active. You can help control RA with exercise and a healthy lifestyle.

Scoliosis is a problem that makes the spine curve and twist from side to side. It's most often found in girls in their early teens. But boys can have it, too.

Osgood-Schlatter disease is a condition that affects the knee. It most often affects young, growing teens. Learn details about treatment here.

Read how Osgood-Schlatter disease affects your knee, and see an illustration of the knee showing where it occurs.