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Alzheimer's disease

Alzheimer's disease

Dr. Swati Mishra
Written By Dr. Swati MishraBDS
Reviewed By Dr. Sachin Gupta
MD Pharmacology, MBBS
Last updated on: 24 Feb 2026 | 11:11 AM (IST)
Also known as AD, or Alzheimer’s disease dementia
Overview

Alzheimer's disease (AD) is a slowly progressive disorder of the brain that fades away memory. It is characterized by disturbances in thinking skills, reasoning, language, and perception and, eventually, the ability to carry out simple daily tasks.


The exact cause of Alzheimer's disease is unclear. However, a buildup of harmful proteins in the brain, called amyloid plaques and tau tangles, is believed to contribute to the disease.


Alzheimer’s disease is not a normal part of aging and is not something that inevitably happens in later life. However, the likelihood of having Alzheimer's disease increases substantially with advancing age. A combination of age-related brain changes, and genetic, environmental, and lifestyle factors are thought to increase the risk of this condition.


Current Alzheimer's medications can help temporarily with memory symptoms and other cognitive changes. Caregivers play an extremely pivotal role in helping people with Alzheimer’s disease with their daily needs and activities as well as protecting them from any danger.

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Overview
Key Facts
Symptoms
Types
Causes
Risk factors
Diagnosis
Prevention
Specialist to visit
Treatment
Home-care
Living with
Complications
Alternatives therapies
FAQs
References