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.
Sexual Activity in Couples with Dementia
Should People With Dementia Be Allowed to Have Sex?
Medically reviewed by Nicholas R. Metrus, MD
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
End-Stage Dementia Makes Your Loved One Vulnerable to Infections
Medically reviewed by Nicholas R. Metrus, MD
Sometimes, Foul Language Occurs in Dementia
Coping With Profanity When Your Loved One Has Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
Nurse talking to older man in home
How to Respond to Screaming Episodes in Dementia
Medically reviewed by Claudia Chaves, MD
Capgras Syndrome in Lewy Body Dementia
When Your Loved One With Lewy Body Dementia Thinks You're an Imposter
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
What Is Dementia and How Is It Different Than Alzheimer's?
Medically reviewed by Claudia Chaves, MD
person's hand holding up a magnifying glass to a brain scan
Pick's Disease: Behavioral Variant Frontotemporal Dementia
Medically reviewed by Claudia Chaves, MD
Frontotemporal Dementia (Pick's Disease)
Frontotemporal Dementia (Pick's Disease) Symptoms, Types, Treatments
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 You Might Not Detect
Medically reviewed by Diana Apetauerova, MD
Woman having trouble speaking
Know the Early Symptoms of Primary Progressive Aphasia
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 People With Dementia
Medically reviewed by Diana Apetauerova, MD
Lewy Body Dementia Is One Kind of Dementia
How Lewy Body Dementia Is Treated
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
How Can Physical Causes Trigger 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
Younger People With Dementia (Early Onset Alzheimer's Disease)
Medically reviewed by Isaac O. Opole, MD, PhD
Senior mother and daughter hugging
Understanding Delusions in Dementia
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
Learn How Lewy Body Dementia Progresses After the Diagnosis
Medically reviewed by Claudia Chaves, MD
An older man sitting on the edge of his bed
Learn What to Do When Someone With Dementia Talks About Suicide
Medically reviewed by Claudia Chaves, MD
Cropped Hand Of Doctor Examining Senior Woman At Hospital
What's the Difference Between Alzheimer's and Lewy Body Dementia?
Medically reviewed by Diana Apetauerova, MD
hip fracture
How Broken Hips Affect Mortality in Dementia and Alzheimer's
Medically reviewed by Claudia Chaves, MD
Older gentleman playing a puzzle
What Are the Differences Between Delirium and Dementia?
Medically reviewed by Nicholas R. Metrus, MD
Prescription pills in pile
Can Too Many Medications Cause Reversible Symptoms of Dementia?
Medically reviewed by Sarah Rahal, MD
One sad pensive senior Indian woman looking up
What to Say and Do When Your Loved One with Dementia is Hallucinating
Medically reviewed by Claudia Chaves, MD
Symptoms of Depression in Dementia
How to Recognize the Symptoms of Depression in Someone With Dementia
Medically reviewed by Sarah Rahal, MD
The Amazing Brain: Alzheimer's vs. Vascular Dementia
What's the Difference Between Alzheimer's and Vascular Dementia?
Medically reviewed by Claudia Chaves, MD
Adult Son Comforting Father Suffering With Dementia - stock photo
Mixed Dementia Symptoms, Diagnosis 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
Here are your options...
The Ins and Outs of Huntington's Disease
Medically reviewed by Claudia Chaves, MD
Senior woman with heart attack and headache fall down at home
Understanding Why People With Dementia Fall Can Help Reduce the Problem
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
What Are the Behavioral and Psychological Symptoms of Dementia (BPSD)?
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
Cerebral Atrophy: Can You Prevent Your Brain from Shrinking?
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
How Are Parkinson's Dementia and Dementia with Lewy Bodies Different?
Medically reviewed by Sarah Rahal, MD
Hoarding in Dementia
When Your Loved One With Dementia Hoards Everything
Medically reviewed by Claudia Chaves, MD
An older man reading book on a dock
15 Things that Make You More Likely to Develop Lewy Body Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
Older woman talking with doctor
Important Questions to Ask the Doctor After a Dementia Diagnosis
Medically reviewed by Diana Apetauerova, MD
Pensive senior woman
Does Vascular Dementia Progresses
Medically reviewed by Shaheen Lakhan, MD, PhD
Woman checking her blood pressure
An Overview of Vascular Dementia
Medically reviewed by Isaac O. Opole, MD, PhD
IV Use in Late Stage Dementia
Why Families Might Decide Not to Give Antibiotics in Late-Stage Dementia
Medically reviewed by Shaheen Lakhan, MD, PhD
Assistant In The Community Center Giving Advice To A Senior Man
Dementia Has Reversible and Irreversible Causes
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
Why Do People with Dementia Struggle to Sleep with Insomnia?
Medically reviewed by Nicholas R. Metrus, MD
Caregiver giving medicine to senior man at home
Research Highlights Risk of Haloperidol (Haldol) and Dementia
Medically reviewed by Sarah Rahal, MD
IV Hydration in Late-Stage Dementia
Should You Ask for IV Fluids for a Loved One With Late-Stage Dementia?
Medically reviewed by Shaheen Lakhan, MD, PhD
Comparing Symptoms and Prognosis of 13 Different Kinds of Dementia
Medically reviewed by Claudia Chaves, MD
Delirium Can Affect Mortality and Dementia Risk
This Temporary Condition Increases Dementia Risk and Chance of Death
Medically reviewed by Nicholas R. Metrus, MD
Two Senior Woman Reading Newspaper
Will I Still Be Able to Read as My Early Stage Alzheimer's Progresses?
Medically reviewed by Nicholas R. Metrus, MD
Dementia Support Group
The 7 Best Dementia Support Groups of 2021
Fact checked by James Lacy