Shingles is caused by the varicella-zoster virus – the same virus that causes chickenpox. After you’ve had chickenpox, the virus lies inactive in nerve tissue near your spinal cord and brain. Years later, the virus may reactivate as shingles. More...

Getting older is a natural part of life. How you will feel as you get older depends on many things, including what health problems run in your family and the choices you make. If you take good care of your body and learn positive ways to deal with stress now, you can slow down or even prevent problems that often come with getting older. More...

Gum (periodontal) disease is an infection of the gums and surrounding tissues that hold teeth in place. The two forms of gum disease are gingivitis, a mild form that is reversible with good oral hygiene, and periodontitis, a more severe form that can damage the soft tissues and bone that support teeth. If left untreated, periodontitis can lead to tooth loss. More...

Huntington’s disease is an inherited disease that causes the progressive breakdown (degeneration) of nerve cells in the brain. Huntington’s disease has a broad impact on a person’s functional abilities and usually results in movement, thinking (cognitive) and psychiatric disorders. More...