A person showing another person with Alzheimer's Disease a photograph

Dementia and Related Cognitive Disorders

Dementia is an umbrella term for different types of cognitive impairment, including Alzheimer's disease. Learn more about what causes changes in memory, communication, and functioning.
Woman with Dementia and Her Baby Doll
Pros and Cons of Doll Therapy in Dementia
Medically reviewed by Sarah Rahal, MD
Puzzle of elderly woman with missing piece
Dying From Dementia With Late-Stage Symptoms
Medically reviewed by Nicholas R. Metrus, MD
Sometimes, Foul Language Occurs in Dementia
Why Foul Language Occurs in Dementia and How to Respond
Medically reviewed by Shaheen Lakhan, MD, PhD
Nurse talking to older man in home
Why Do Some People With Dementia Cry and Call Out?
Medically reviewed by Claudia Chaves, MD
Capgras Syndrome in Lewy Body Dementia
Capgras Syndrome in Lewy Body Dementia
Medically reviewed by Sarah Rahal, MD
Spoons of different spices
Complementary and Alternative Treatments for Dementia
Medically reviewed by Sarah Rahal, MD
A woman with Alzheimer's looking out the window
Differences Between Dementia and Alzheimer's
Medically reviewed by Claudia Chaves, MD
person's hand holding up a magnifying glass to a brain scan
Pick's Disease: Behavioral Frontotemporal Dementia
Medically reviewed by Claudia Chaves, MD
Frontotemporal Dementia (Pick's Disease)
Frontotemporal Dementia (Pick's Disease) Overview
Medically reviewed by Sarah Rahal, MD
Quality of Life in Lewy Body Dementia
8 Tips on Coping and Living Life With Lewy Body Dementia
Medically reviewed by Sarah Rahal, MD
Dizzyness and Fainting Can Be A Symptom of Lewy Body Dementia
Less Common Symptoms of Lewy Body Dementia
Medically reviewed by Diana Apetauerova, MD
Woman having trouble speaking
Primary Progressive Aphasia: Symptoms, Types, Treatment
Medically reviewed by Shaheen Lakhan, MD, PhD
huntington's disease genetic test
Genetic Testing for Huntington's Disease
Medically reviewed by Huma Sheikh, MD
Anger and Aggression in Dementia Can Be Challenging
How to Respond to Anger and Aggression in Dementia
Medically reviewed by Diana Apetauerova, MD
Lewy Body Dementia Is One Kind of Dementia
Lewy Body Dementia Symptoms, Treatment and Prognosis
Medically reviewed by Diana Apetauerova, MD
Alcohol Dementia Requires Treatment
Alcohol Dementia: What Is Wernicke-Korsakoff Syndrome?
Medically reviewed by Shaheen Lakhan, MD, PhD
Pain Can Be One Physical Cause of Challenging Behaviors in Dementia
Physical Causes of Challenging Behaviors in Dementia
Medically reviewed by Sarah Rahal, MD
Caregiver standing with older man in wheel chair
12 Things About Dementia People Wish They'd Known Earlier
Medically reviewed by Claudia Chaves, MD
Man with Younger Onset Dementia and His Family
Young People With Dementia (Early Onset Alzheimer's)
Medically reviewed by Isaac O. Opole, MD, PhD
Senior mother and daughter hugging
Delusions in Dementia: Symptoms, Causes, Diagnosis, Treatment, and Coping
Medically reviewed by Huma Sheikh, MD
Researchers Study Cortical and Subcortical Images of the Brain
Differences Between Cortical and Subcortical Dementia
Medically reviewed by Sarah Rahal, MD
Physician Explaining Lewy Body Dementia
Stages and Progression of Lewy Body Dementia
Medically reviewed by Claudia Chaves, MD
An older man sitting on the edge of his bed
When Someone With Dementia Talks About Suicide
Medically reviewed by Claudia Chaves, MD
Cropped Hand Of Doctor Examining Senior Woman At Hospital
Difference Between Alzheimer's and Lewy Body Dementia
Medically reviewed by Diana Apetauerova, MD
hip fracture
The Dangers of Hip Fractures in Dementia
Medically reviewed by Claudia Chaves, MD
Older gentleman playing a puzzle
Differences Between Delirium and Dementia
Medically reviewed by Nicholas R. Metrus, MD
Prescription pills in pile
Can Too Many Medications Cause Symptoms of Dementia?
Medically reviewed by Sarah Rahal, MD
One sad pensive senior Indian woman looking up
Responding to and Treating Hallucinations in Dementia
Medically reviewed by Claudia Chaves, MD
Symptoms of Depression in Dementia
Recognizing the Symptoms of Depression in Dementia
Medically reviewed by Sarah Rahal, MD
The Amazing Brain: Alzheimer's vs. Vascular Dementia
Differences Between Alzheimer's and Vascular Dementia
Medically reviewed by Claudia Chaves, MD
Adult Son Comforting Father Suffering With Dementia - stock photo
Mixed Dementia Symptoms and Treatment
Medically reviewed by Sarah Rahal, MD
Eating Breakfast Together Can Be an Important Morning Routine
The Benefits of Routines for People With Dementia
Medically reviewed by Diana Apetauerova, MD
Physicians Reviewing Test Results
7 Reasons Why Pick's Disease Is So Challenging
Medically reviewed by Sarah Rahal, MD
Surgery to Place a Feeding Tube
Questions About Feeding Tubes in Late-Stage Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
Huntington's Disease (HD): Overview and More
Medically reviewed by Claudia Chaves, MD
Senior woman with heart attack and headache fall down at home
Common Causes of Falls in People With Dementia
Medically reviewed by Sarah Rahal, MD
Orientation to Date and Time
What Does Oriented x1, x2, x3 and x4 Mean in Dementia?
Medically reviewed by Diana Apetauerova, MD
Senior woman covering face with her hands
Behavioral and Psychological Symptoms of Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
Vitamin B12 Deficiency Can Mimic Alzheimer's Disease
Is It Alzheimer's Disease or Vitamin B12 Deficiency?
Medically reviewed by Claudia Chaves, MD
Brain scans, MRI scans
What is Cerebral (Brain) Atrophy?
Medically reviewed by Claudia Chaves, MD
Illustration of a brain
Binswanger's Disease Symptoms, Treatment, and Prognosis
Medically reviewed by Shaheen Lakhan, MD, PhD
Leaking tap
10 Causes of Potentially Reversible Dementia Symptoms
Medically reviewed by Sarah Rahal, MD
Robin Williams Was Reported to Have Suffered from Lewy Body Dementia
Parkinson's Dementia vs. Dementia with Lewy Bodies
Medically reviewed by Sarah Rahal, MD
Hoarding in Dementia
Examining the Link Between Hoarding and Dementia
Medically reviewed by Claudia Chaves, MD
An older man reading book on a dock
Factors that Increase Your Risk of Lewy Body Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
Older woman talking with doctor
12 Things to Ask the Doctor After a Dementia Diagnosis
Medically reviewed by Diana Apetauerova, MD
Pensive senior woman
Does Vascular Dementia Have Stages?
Medically reviewed by Shaheen Lakhan, MD, PhD
Woman checking her blood pressure
Vascular Dementia: Overview and More
Medically reviewed by Isaac O. Opole, MD, PhD
IV Use in Late Stage Dementia
When to Use Antibiotics in Late-Stage Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
Assistant In The Community Center Giving Advice To A Senior Man
Various Types and Causes of Dementia
Medically reviewed by Claudia Chaves, MD
People with dementia do not sleep well due to changes in the brain affecting the circadian rhythm and issues related to institutionalization causing insomnia
Sleep Disruption May Be an Early Sign of Dementia
Medically reviewed by Nicholas R. Metrus, MD
Caregiver giving medicine to senior man at home
Research Highlights Risk of Haldol and Dementia
Medically reviewed by Sarah Rahal, MD
IV Hydration in Late-Stage Dementia
IV Fluids for Hydration in Late-Stage Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
13 Different Kinds of Dementia - Symptoms and Prognosis
Medically reviewed by Claudia Chaves, MD
Delirium Can Affect Mortality and Dementia Risk
Delirium: Higher Mortality Rate and Risk of Dementia
Medically reviewed by Nicholas R. Metrus, MD
Two Senior Woman Reading Newspaper
Reading During Different Stages of Dementia
Medically reviewed by Nicholas R. Metrus, MD
Dementia Support Group
The 7 Best Dementia Support Groups of 2021
Fact checked by James Lacy