Alzheimer's disease

How ‘brain cleaning’ while we sleep may lower our risk of dementia

The brain has its own waste disposal system—known as the glymphatic system—that's thought to be more active when we sleep. But disrupted sleep might hinder...

New research identifies early Alzheimer’s target that could delay symptoms

Alzheimer’s disease is often called a thief of identity, gradually erasing memory, language, and reasoning until little of the self remains. But by the time...

Why your biological age may predict cognitive decline better than birthdays

A new study from psychologists at the University of Virginia has found that biological aging, measured through “epigenetic clocks,” may predict who experiences memory...

How fat disrupts the brain’s immune shield in Alzheimer’s disease

For decades, scientists believed fat in the brain was little more than a by-product of neurodegenerative diseases like Alzheimer’s. But new research from Purdue University...

Video games could boost brain health in people with dementia

Could playing computer games help people with dementia stay sharper for longer? Researchers at the University of Alberta believe the answer may be yes. They have...

Air pollution may speed up Alzheimer’s damage in the brain

Breathing polluted air may do more than harm the lungs and heart—it may also make Alzheimer’s disease worse. A new study has found that people...

Artificial sweeteners may speed up memory loss, study finds

Many people turn to low- and no-calorie sweeteners as a healthier option to cut down on sugar. These artificial sweeteners are often found in diet...

Could a common fungus trigger Alzheimer’s disease?

For a long time, scientists have known there might be a connection between fungi and brain diseases like Alzheimer’s. But how exactly this happens has...

Being too positive is an early sign of cognitive decline, study finds

As people grow older, they often see the world in a more positive way. For example, they may look at a neutral or even slightly...

Why rugby players may face greater dementia risk later in life

A new study from the University of Auckland has found that former male rugby players in New Zealand face a higher risk of developing...