There are changes in memory that are common with aging. But these 10 warning signs could signal something more serious. If you think you're experiencing one, see a doctor; people diagnosed earlier have more options.

Typical age-related change: Sometimes forgetting names or appointments, but remembering them later.

Possible Alzheimer's warning sign: Memory loss that disrupts daily life. Forgetting recently learned information or important dates or events; asking for the same information over and over; relying on memory aids (notes, electronic devices) or family members for things you used to handle on your own.

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