NIHSeniorHealth.gov makes aging-related health information easily accessible for family members and friends seeking reliable, easy to understand online health information. This site was developed by the National Institute on Aging (NIA) and the National Library of Medicine (NLM) both part of the National Institutes of Health (NIH).

NIHSeniorHealth features authoritative and up-to-date health information from Institutes and Centers at NIH. In addition, the American Geriatrics Society provides expert and independent review of some of the material found on this web site. Each health topic includes general background information, open-captioned videos, quizzes and frequently asked questions (FAQs). New topics are added to the site on a regular basis.

http://nihseniorhealth.gov/alzheimersdisease/toc.html