Early signs include difficulty remembering recent events or conversations. Memory loss is the key symptom of Alzheimer's disease.
In advanced stages of the disease, complications from severe loss of brain function - such as dehydration, malnutrition or infection - result in death. There is no treatment that cures Alzheimer's disease or alters the disease process in the brain. Different programs and services can help support people with Alzheimer's disease and their caregivers. These treatments can sometimes help people with Alzheimer's disease maximize function and maintain independence for a time. Medications may temporarily improve or slow progression of symptoms. As the disease progresses, a person with Alzheimer's disease will develop severe memory impairment and lose the ability to carry out everyday tasks. The early signs of the disease include forgetting recent events or conversations. Out of the approximately 50 million people worldwide with dementia, between 60% and 70% are estimated to have Alzheimer's disease.
Of those, 80% are 75 years old and older. Approximately 5.8 million people in the United States age 65 and older live with Alzheimer's disease.
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