06/16/2025
Alzheimer’s disease is a progressive condition that unfolds gradually over time, though the rate of progression varies from person to person. On average, individuals live four to eight years after diagnosis, but some may live as long as 20 years.
The disease begins silently, years before symptoms appear. This stage is known as preclinical Alzheimer’s, when changes in the brain are already underway but not noticeable. This stage can last for years or even decades before progressing to the next stage.
Once symptoms develop, Alzheimer’s typically consists of three stages:
• In the early stage, an individual may function independently but notice mild memory lapses, difficulty finding words, or trouble with planning and organization.
• In the middle stage, cognitive decline becomes more pronounced. A person may struggle with daily tasks, experience confusion, and show mood or behavioral changes. This stage often lasts the longest and requires increasing support.
• In the late stage, the disease is advanced. A person may lose the ability to carry on a conversation, recognize a loved one, or control motor movement. Around-the-clock care is typically needed. The individual may become especially vulnerable to infections and other complications.
Understanding how Alzheimer’s unfolds can help individuals and families prepare for care needs, make informed decisions, and ensure the best possible quality of life at every stage of the disease.
