What Is the Life Expectancy after an Alzheimer’s Diagnosis?

​Alzheimer's disease is a progressive neurological condition that kills brain cells, affecting memory, cognitive abilities, and daily functioning. About 5.8 million Americans over 65 and 200,000 under 65 have Alzheimer's.

Most people with Alzheimer's disease live eight to 10 years post-diagnosis, but some may live 20 years or longer after onset. Factors such as age at diagnosis, overall health, and stage of the disease when diagnosed influence life expectancy. Because patients are more likely to have other underlying health issues, such as high blood pressure, heart disease, and diabetes that can hasten the advancement of Alzheimer's disease, those who receive a diagnosis later in life, for example, in their 80s, may pass within two to three years.

Alzheimer's disease progresses in phases, from mild memory loss to severe dementia. As the illness progresses, life expectancy frequently decreases due to heightened susceptibility to illnesses, complications from immobility, and difficulties swallowing, which can result in aspiration pneumonia or undernourishment.

While Alzheimer's is incurable, new discoveries in medicine and treatment continue to help manage symptoms and slow progression. Patients with Alzheimer's can also improve their quality of life and possibly extend their lives by maintaining an active lifestyle, eating a balanced diet, and getting adequate sleep.

Dr. Robert Kohn, Some Categories of Suicide

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