Researchers say a simple blood test could help flag which older women face a higher risk of dementia long before any symptoms ...

When doctors suspect Alzheimer's, they can order a blood test to learn whether a patient's brain contains the sticky amyloid plaques that are a hallmark of the disease. But the results of that test ...

Memory loss is often viewed as a brain problem, but the digestive system plays a major role. Research published in Nature shows that age-related bacterial changes disrupt nerve communication, and ...

Reaction time reflects brain processing speed; simple tests like the ruler drop can reveal attention, coordination, and early ...

Matthew Mundy does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...