Over 30 million people worldwide are living with Alzheimer's disease. While some mild memory loss is a natural part of the aging process, the symptoms of Alzheimer's are not. Use this list to help detect warning signs of Alzheimer's disease, and talk with your physician if you or a family member is displaying any of these symptoms.

1. Memory loss that disrupts daily life. This common sign of Alzheimer's includes forgetting important dates, events and recently learned information, as well as repeatedly asking for the same information and relying on others for regular tasks.
2. Planning and problem solving challenges. Common examples are taking a long time to complete familiar, simple tasks such as developing a plan, working with numbers, following directions (such as recipe) or keeping track of monthly bills.
3. Familiar tasks become unfamiliar. It may be difficult to complete daily, routine tasks such as driving to a familiar location, reciting much-used phone numbers, or remembering the rules of favorite games.
4. Confusion about time or place. Losing track of dates, where you are or how you got there, and the general passage of time is a sign of Alzheimer's.
5. Trouble understanding visual images and spatial relationships. Difficulty reading, judging distance, determining color or contrast, and confusion as to what is reflected in a mirror may affect some people with Alzheimer's. 

Find more information on treating and preventing Alzheimer's disease.