Dementia: What you need to know about this growing condition

... and judgment, and visual perception. More often than not, these symptoms begin slowly and gradually worsen. Alzheimer's disease is the most common type of dementia, accounting for 60 to 80 percent of cases, according to the Alzheimer's Association. ...

http://www.foxnews.com/health/2013/03/27/dementia-what-need-to-know-about-this-growing-condition/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+foxnews%2Fhealth+%28Internal+-+Health+-+Text%29