Dementia
Last Updated: July 3, 2026
Key Points
- Memory loss and thinking problems affecting daily life
- Caused by damage to brain cells
- Diagnosis involves medical tests and assessments
- Management focuses on symptoms and supportive care
Overview
Dementia is not a single disease but a general term for a decline in mental ability severe enough to interfere with daily life. It affects memory, thinking, language, problem-solving, and even personality, making it difficult for individuals to perform everyday tasks. It is caused by damage to brain cells, which can result from various diseases like Alzheimer's, vascular dementia, or Lewy body dementia. The specific type of dementia depends on the area of the brain affected and the underlying cause of the cell damage. While there is no cure for most types of dementia, treatments and support are available to help manage symptoms and improve quality of life. Early diagnosis can help individuals and families plan for the future and access necessary care and support services.
Signs and Symptoms
- Memory loss affecting daily life
- Difficulty planning or solving problems
- Trouble completing familiar tasks
- Confusion with time or place
- Problems with words in speaking or writing
- Misplacing things and losing ability to retrace steps
- Decreased or poor judgment
- Withdrawal from work or social activities
- Changes in mood or personality
Things That Increase the Risk
- Increasing age
- Family history of dementia
- Head injuries
- Cardiovascular disease risk factors (e.g., high blood pressure, diabetes)
- Lifestyle factors like smoking and excessive alcohol
Diagnosis
- Medical history review
- Physical and neurological exams
- Cognitive and neuropsychological tests
- Brain scans (MRI, CT, PET)
- Blood tests to rule out other conditions
Treatment & Management
- Medications to manage symptoms
- Cognitive stimulation therapy
- Occupational therapy for daily tasks
- Support groups for patients and caregivers
- Lifestyle adjustments (diet, exercise, social engagement)
Prevention
- Maintain a healthy diet
- Engage in regular physical activity
- Manage blood pressure and cholesterol levels
- Avoid smoking and excessive alcohol consumption
- Stay mentally and socially active
Available Treatments
Explore our range of treatment options for Dementia:
Surgical Options
Learn about surgical procedures available for Dementia:
Contents
Quick Info
Affects
Memory, thinking, and daily life
Prevalence
Millions worldwide, increasing with age
Diagnosis
Cognitive tests, brain imaging, medical history
Treatment
Symptom management, supportive care
Medically Reviewed
Dr. Vijay Bhat
Orthopedic Surgeon · Apollo Hospitals, Chennai
Reviewed on July 3, 2026
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