Connect with others who understand.

sign up log in
About myALZteam

Types of Alzheimer’s

Posted on August 13, 2018
Article written by
Kelly Crumrin

Dementia is a collection of symptoms characterized by cognitive problems – deficits in thinking, memory, reasoning, judgment, language, communication, and awareness. Dementia can also include psychological symptoms such as behavior, personality, and mood changes, as well as psychotic symptoms such as hallucinations and delusions. There are many causes of dementia. Knowing the type of dementia someone has helps doctors prescribe effective treatments and better predict how the disease will progress.

Alzheimer’s disease is the leading cause of dementia, accounting for 60 to 80 percent of cases. Other causes of dementia can include vascular dementia, dementia with Lewy bodies, Parkinson’s disease dementia, Huntington’s disease, mixed dementia, frontotemporal dementia, Creutzfeldt-Jakob (mad cow) disease, normal pressure hydrocephalus, and Wernicke-Korsakoff syndrome. Diagnosing which type of dementia someone has can be a complex process that may take years.

Alzheimer’s Types

Alzheimer’s is typed by the age of onset.

Late-Onset Alzheimer's Disease (LOAD)

Most people with Alzheimer’s have late-onset disease that develops after age 65. Nearly all cases of late-onset Alzheimer’s begin with memory issues.

Early-Onset or Young-Onset Alzheimer’s Disease (EOAD or YOAD)

Also called familial Alzheimer’s disease, or FAD, early-onset Alzheimer’s develops before age 65 in approximately 5 percent of people. Onset is usually in the 30s, 40s, or 50s. In early-onset Alzheimer’s, the earliest symptoms are more likely to be apraxia – a movement disorder that makes it difficult to perform voluntary actions – and vision changes such as loss of depth perception, peripheral vision, perceiving color or contrast, or spatial awareness of objects.

Condition Guide

Resources

External resources

myALZteam resources

All updates must be accompanied by text or a picture.
Kelly Crumrin is a senior editor at MyHealthTeam and leads the creation of content that educates and empowers people with chronic illnesses. Learn more about her here.

Related articles

Alzheimer’s is a degenerative brain disease that causes worsening dementia and eventually leads...

Alzheimer’s Disease – An Overview

Alzheimer’s is a degenerative brain disease that causes worsening dementia and eventually leads...
As we grow older, distinguishing between what is a sign of normal aging and what may be a sign...

Mild Cognitive Impairment Symptoms vs. Normal Aging

As we grow older, distinguishing between what is a sign of normal aging and what may be a sign...
Mild cognitive impairment (MCI) is a stage between normal age-related cognitive decline and...

What Is Mild Cognitive Impairment?

Mild cognitive impairment (MCI) is a stage between normal age-related cognitive decline and...
Mild cognitive impairment (MCI) isn’t just ordinary forgetfulness. Mild cognitive impairment...

Tips for Improving Memory Health

Mild cognitive impairment (MCI) isn’t just ordinary forgetfulness. Mild cognitive impairment...
Assessing the stage of Alzheimer’s helps anticipate disabilities and plan accordingly for care....

Stages of Alzheimer’s Disease

Assessing the stage of Alzheimer’s helps anticipate disabilities and plan accordingly for care....

Recent articles

Lewy body dementia (LBD) is a general term for two different disorders of the nervous system:...

How Does Lewy Body Dementia Differ From Alzheimer’s Disease?

Lewy body dementia (LBD) is a general term for two different disorders of the nervous system:...
There is currently no cure for Alzheimer’s disease. However, many people with Alzheimer’s can...

Treatments for Alzheimer’s Disease

There is currently no cure for Alzheimer’s disease. However, many people with Alzheimer’s can...
An Alzheimer’s diagnosis is a life-changing event that can alter the way you think about your...

Medical Power of Attorney and Alzheimer’s

An Alzheimer’s diagnosis is a life-changing event that can alter the way you think about your...
If you have been diagnosed with Alzheimer’s disease, it’s natural to want to improve your quality...

Alcohol and Alzheimer's Disease: What To Know

If you have been diagnosed with Alzheimer’s disease, it’s natural to want to improve your quality...
It takes a village to support living with a chronic condition like Alzheimer’s disease. Whether...

Find Your People on myALZteam

It takes a village to support living with a chronic condition like Alzheimer’s disease. Whether...
You can never ask too many questions on myALZteam. Other members are here to support you, help...

Share and Receive on myALZteam

You can never ask too many questions on myALZteam. Other members are here to support you, help...
myALZteam My Alzheimer's Team

Thank you for subscribing!

Become a member to get even more:

sign up for free

close