common form of dementia. Dementia is the loss of intellectual and social abilities severe enough to interfere with daily functioning. It occurs in people with Alzheimer's disease because — for reasons unclear — healthy brain tissue degenerates, causing a steady decline in memory and mental abilities.

More than 4 million older Americans have Alzheimer's, a disease that usually develops in those age 65 or older. This number is expected to triple in the next 20 years as more people live into their 80s and 90s.

Although there's no cure or surefire way to prevent Alzheimer's disease, researchers have made progress in the last 5 years. Treatments are available that help improve the quality of life for people with Alzheimer's. Also, more drugs are being studied, and scientists have discovered several genes associated with Alzheimer's, which may lead to new treatments to block progression of this complex disease.
Ginkgo Biloba
St. John's Wort
Siberian Ginseng