Alzheimers Disease

Here's the latest on how concussions affect a person's thinking abilities.

For the first time, scientists have used brain scans to track the development of Alzheimer's disease in adults with no symptoms.

The memory capacity of the human brain could be as large as the entire World Wide Web, new research suggests.

A bizarre case of a man who suddenly recovered his memory after 30 years highlights the unpredictable nature of amnesia, one expert says.

Couch potatoes beware: Exercising in middle age may be linked with a healthier brain later on, a new study finds.

A study of cadavers reveals a dramatic decrease of vitamin B12 in the brain across the ages but also among young people with autism and schizophrenia.

Years of using marijuana may harm this cognitive ability.

Having a friend can do great things for your physical health.

Researchers have found a molecule that breaks down the clumps of protein linked with Alzheimer's disease.

Although the ability to sustain attention varies widely from person to person, characterizing these individual differences has been difficult.

Robin Williams may have committed suicide because he had a condition known as Lewy body dementia, in which an abnormal buildup of brain proteins cause progressive cognitive declines.

Do you know your biological age? It's not the same as your chronological age.

The blood of the young may be able to counter some of the effects of aging in older brains, according to studies in animals

Even as a new rule will force food companies to stop adding trans fat to food, research continues to show the negative effects of trans fat on health.

People who have problems with their sense of smell may be at increased risk for dying sooner than those who don't have trouble smelling, a new study suggests.

Eating a Mediterranean diet -- with lots of nuts and olive oil -- may help delay cognitive decline in older adults, a new study finds.

What makes scent such a powerful tool to "transport" you back in time?

People with depression or diabetes may face an increased risk of developing dementia, a new study finds.

Being too thin in middle age might be bad for brain health later in life, a new study suggests.