Dementia Life Expectancy

Anthem Memory Care communities strive to create an environment where individuals with memory loss-related dementia can live with dignity and purpose. By providing specialized care and support, we help residents retain a sense of self and find meaning in their daily activities.

Dementia Life Expectancy Over 80

There are multiple variables influencing the life expectancy of people with dementia.

The type of dementia plays a significant role in determining how long a person will live. Firstly, individuals with Alzheimer’s disease tend to live longer than those with vascular dementia, Lewy body dementia, or frontotemporal dementia.

Alzheimer’s Disease Life Expectancy

On average, individuals living with Alzheimer's disease can expect to live 3 to 10 years following their diagnosis. Various key factors influence the life expectancy of people diagnosed with Alzheimer's disease, including:

The first appearance of symptoms: The most significant factor is the age of diagnosis. If a person receives an Alzheimer's diagnosis in their 80s or 90s, their life expectancy is generally shorter. These individuals may already have experienced a decline in their overall physical and mental well-being, which can accelerate the progression and worsening of the disease. On the other hand, individuals who receive a diagnosis in their 50s or younger tend to have a longer life expectancy.
Existing medical conditions: The severity of Alzheimer's and the presence of other medical conditions can also impact life expectancy. Individuals who experience more rapidly progressing cognitive decline or develop complications as a result of their condition may live for a shorter period compared to those who have milder symptoms and remain relatively stable.
Behavioral/mood changes: The presence of behavioral and psychiatric symptoms in Alzheimer's disease can also affect life expectancy. These symptoms, which include agitation, aggression, wandering, delusions, and hallucinations, can significantly impact an individual's quality of life and ability to engage in daily activities. The intensity and frequency of these symptoms can vary depending on individual differences and the stage of the disease.

While the average life expectancy for people with Alzheimer's disease is 3 to 10 years, it is essential to note that some people do survive considerably longer. There have been documented cases of individuals living as long as 20 years post-diagnosis.

Vascular Dementia Life Expectancy

Vascular dementia is a form of dementia caused by damage to the blood vessels in the brain. People diagnosed with vascular dementia have an overall life expectancy of between 3 and 5 years. This relatively short prognosis is primarily a result of the underlying vascular disorders that contribute to poor health conditions. These disorders include the following:

Atherosclerosis: Atherosclerosis, the narrowing, and hardening of the arteries, is a major contributor to vascular dementia. As atherosclerosis progresses, it can lead to further complications, such as stroke or heart attack, which further exacerbates the prognosis.
Stroke: Stroke, a blockage or rupture of a blood vessel in the brain, is another significant risk factor for vascular dementia. The damage caused by a stroke can lead to irreversible loss of brain function and exacerbate existing vascular damage.
Heart attack: The presence of underlying heart disease, such as coronary artery disease, can significantly contribute to the shortened life expectancy in individuals with vascular dementia.

Lewy Body Dementia Life Expectancy

The life expectancy for people with Lewy body dementia typically ranges from 4 to 8 years. People with Lewy body dementia typically have poorer outcomes compared to people with Alzheimer’s disease.

Lewy body dementia is characterized by several unique features that have implications for the life expectancy of affected individuals.

Faster cognitive decline: Individuals with Lewy body dementia experience a faster decline in cognitive functioning than individuals with Alzheimer's disease. This accelerated decline can affect the ability to perform daily activities, think clearly, and make decisions.
Higher rates of depression: People diagnosed with Lewy body dementia experience higher rates of depression than people with other forms of dementia. Feelings of hopelessness, declining participation in activities, and sleep disruptions can further contribute to poorer outcomes.
Mobility decline: Over time, Lewy body dementia can lead to difficulties with walking, balance, and coordination. This deterioration can increase the risk of falls and fractures, further impacting the quality of life.

While the average life expectancy of individuals with Lewy body dementia is shorter than those with Alzheimer's disease, individual variations exist. The duration and severity of symptoms can vary widely, and some people may experience a longer lifespan than others.

Frontotemporal Dementia Life Expectancy

The life expectancy of a person diagnosed with frontotemporal dementia is between 6 and 8 years, though the actual duration can vary depending on various factors.

Loss of mobility: One notable vulnerability is the loss of mobility, which can lead to an increased risk of falling. When individuals with frontotemporal dementia lose the ability to walk or balance properly, they may stumble or fall, causing serious injuries such as fractures or head injuries.
Inability to swallow: The inability to swallow properly can also pose significant risks. Individuals with frontotemporal dementia may aspirate food and liquid, causing an infection resulting in aspiration pneumonia. Aspiration pneumonia is a serious condition that can be fatal.
Personality and behavior changes: In addition to physical vulnerabilities, frontotemporal dementia can also lead to changes in behavior and personality. Individuals with the disease may develop compulsions or socially inappropriate behaviors, which can sometimes lead to social isolation and difficulties maintaining relationships.

The above estimates are not absolute, and each individual's situation is unique. The life expectancy of people with dementia can vary depending on factors such as genetics, lifestyle, and access to appropriate care and support.

Protect, Engage & Love

At Anthem Memory Care, we believe that everyone deserves to live their best life. We are passionate about providing loving, person-centered care and creating meaningful experiences for our residents.

Anthem Memory Care communities are dedicated to providing the resources and support needed to slow the progress of dementia-related cognitive decline. With personalized care plans, an enriching daily routine, and a focus on preserving residents' independence, dignity, and purpose, we strive to create an environment that fosters well-being and enhances the quality of life for our residents and their families.