Alzheimers Disease

Find out everything there is to know about Alzheimer's disease and stay updated on the latest news in memory loss with the comprehensive articles, interactive features and pictures at LiveScience.com. Learn more about this disease as scientists continue to make amazing discoveries about memory.

Latest about Alzheimers & Dementia

There's a new blood test for Alzheimer's — here's how it works

By Theresa Sullivan Barger published

In patients showing cognitive decline, a new blood test for Alzheimer's is expected to make diagnosis more convenient, accessible and inexpensive than other existing tests.

Alzheimers & Dementia

Shingles vaccine may directly guard against dementia, study hints

By Clarissa Brincat published

The lower incidence of dementia seen in adults who received the shingles vaccine is likely not just a correlation, scientists say, based on new results of an observational study.

Alzheimers & Dementia

Man nearly guaranteed to get early Alzheimer's is still disease-free in his 70s — how?

By Marianne Guenot published

A man who should have developed early-onset Alzheimer's disease due to a genetic mutation is still symptom-free in his 70s. Scientists are trying to understand why.

Alzheimers & Dementia
an electron micrograph of herpes virus

'Reanimated' herpes viruses lurking in the brain may link concussions and dementia

By Nicoletta Lanese published

A study using lab-made models of the brain suggests that a herpes virus may be a key link between concussions and dementia risk.

Alzheimers & Dementia
A senior man and woman smile as they walk along the beach during a sunset

Nearly half of global dementia cases could be delayed or prevented, scientists say

By Eric B. Larson, Laura Gitlin published

In a new study, scientists have identified 14 modifiable risk factors that boost dementia rates, but could be addressed.

Alzheimers & Dementia
illustration of a strand of RNA, which resembles DNA but has one strand instead of two

'Look at all this we don't understand': Study unravels whole new layer of Alzheimer's disease

By Nicoletta Lanese published

A new study begins to unpack an understudied aspect of brain biology and Alzheimer's disease.

Alzheimers & Dementia
Close-up image of an opened box of blue, diamond-shaped Viagra tablets with two pill packets sticking out towards the camera. The Pfizer logo can be clearly seen on the side of the box.

Active ingredient in Viagra tied to lower Alzheimer's risk — but don't get too excited

By Emily Cooke published

Once more, sildenafil, the main active component of the "little blue pill," has been found to be associated with a reduced risk of developing Alzheimer's disease.

Alzheimers & Dementia
close up on a person's hand as they use a pen to point at an image of 6 brain scans, labeled "PET amyloid and tau imaging"

Alzheimer's may be caused by immune cells thinking brain cells are bacteria, expert says

By Donald Weaver published

A new theory of Alzheimer's disease reassesses the role of beta-amyloid in the brain.

Alzheimers & Dementia
Medical illustration of a neuron, in blue, in the background being surrounded by a plaque of amyloid-beta protein, in yellow with the illustration visualizing how the proteins join together

Alzheimer's is transmissible in extremely rare scenarios

By Emily Cooke published

A small study suggests that "seeds" of Alzheimer's can be transferred from one person to another via certain medical procedures, leading to the disease later in life.

Alzheimers & Dementia
Social worker in foreground rests arm on shoulder of senior man who is sitting on a couch

Alzheimer's comes in at least 5 distinct forms, study reveals

By Emily Cooke published

Knowing that Alzheimer's comes in at least five distinct forms could change the treatment landscape, the scientists behind the new study say.

Alzheimers & Dementia
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