Christopher Wanjek

The woman in the famous painting "Christina's World" may not have had polio, as long thought.

An eye-scan technique may detect the early signs of Alzheimer's disease, before major symptoms appear, a new report says.

Getting tan without UV rays, or lightening skin without toxic chemicals, could one day be possible thanks to a new discovery.

Transcranial direct current stimulation (tDCS) was used to stimulate an area of the brain known to be associated with creativity.

People who seek risky thrills or act impulsively may have a thinner cortex around brain areas involved in decision making, a new study finds.

People who are infected with a common parasite found in cat litter may face a higher risk of having uncontrollable bouts of rage.

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

Slackers, rejoice! You knew you were right about exercise all along, didn't you?

Fight sugar with sugar? A new study in mice suggests it might work.

Scientists say they have made human "mini-brains" the size of a fly's eye that, within a year, might replace lab animal models for research on drug addiction and other neurological disorders.

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.

Older people who have lower levels of bicarbonate, a main ingredient in baking soda, in their blood may be at increased risk of premature death.

Some cancers are mysterious, in that doctors cannot determine where they originated. Now, it seems that some of these cancers are caused by HPV.

Scientists have created a treatment that they say can fight the two deadliest strains of Ebola.

Here is our annual countdown of the "top five" scientific retractions in the last year, some serious, most comical.

Music has charms to soothe a savage breast. And, it seems, flowers can calm an aggressive honeybee.

Nutrients found in cocoa may improve the heart health, a new study of patients with advanced kidney disease finds.

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

People who speak more than one language seem to fare better after a stroke, a new study finds.

Brain scans may predict the possibility of someone recovering from a coma, a new study suggests.

There's no longer any doubt that consuming added sugar contributes to a litany of chronic diseases in children, researchers say.