Skip to content

Alzheimer's Disease Health Center

Symptoms & Types

Font Size

Do you know the warning signs, symptoms, and types of Alzheimer's disease? These articles will help you tell when it's Alzheimer's -- and when it's not.


Is it Alzheimer's or just normal aging? We all forget things as we age. Mild forgetfulness is normal. More serious memory problems can make independent living difficult. Read about the steps you can take to help your memory.

The symptoms of Alzheimer's disease often come on gradually. They then typically progress over several years to the point of causing major impairment.

The stages don't always fall into neat boxes, and the symptoms might vary -- but they can be a guide and help you plan for your friend or relative's care.

Warning Signs

These early signs may hint that a person has Alzheimer's disease. They DON'T mean a person definitely has Alzheimer's. If someone you love shows several of these signs, they should be examined by a health care professional.

Mild forgetfulness can be a normal part of aging. If you have trouble remembering someone's name but it comes to you later, that's not a serious memory problem. But if memory problems are seriously affecting your daily life, they could be early signs of Alzheimer's disease. 

As you get older, chances are you’ll sometimes forget a word, where you left your car keys, or the name of a neighbor you bumped into at the market.


There are several types of Alzheimer's disease.

Early-onset Alzheimer's is a form of the disease that strikes before you're 65. There's no cure, but there are drugs to manage symptoms, at least for a while, including memory loss, problems sleeping, and changes in behavior. The early form of Alzheimer's most often shows up when you're in your 40s and 50s, but symptoms can also show up as early as your 30s.

Today on WebMD

Remember your finger
When it’s more than just forgetfulness.
senior man with serious expression
Which kinds are treatable?
senior man
Common symptoms to look for.
mri scan of human brain
Can drinking red wine reverse the disease?
eating blueberries
Colored mri of brain
Close up of elderly couple holding hands
mature woman
Woman comforting ailing mother
Senior woman with serious expression