A brain imaging study found evidence of dopamine system injury in people with long COVID, offering a possible explanation for ...

Learn how new brain scans link long COVID to changes in the dopamine system that may help explain fatigue, brain fog, and ...

Even mild heart dysfunction leaves microscopic scars in memory-related brain regions, creating a hidden bridge from cardiac ...

The study points to soluble TNF as a key biological link between head injury and Alzheimer’s disease and shows that ...

When the heart's pumping function gets weaker, areas of the brain linked to memory show early signs of damage, a study finds.

Memory formation involves complex processes within the brain. When you experience something, like placing your keys on a table, neurons in the brain activate in a specific pattern. The strength of ...

Scientists have discovered how a key protein helps maintain strong connections between brain cells that are crucial for learning and memory. Results of the study, published in the journal Science ...

That forgotten name, misplaced keys, or missed appointment could mean more than just an embarrassing moment. Medical experts warn these innocent-looking memory slips might reveal serious brain damage ...

Aging changes gut bacteria in mice, weakening communication between the intestines and the brain. Restoring that connection ...

Former "TODAY" show anchor Katie Couric recently spent a few frightening hours unable to recall the month, the year or who was president — an episode she now knows was caused by a rare, temporary ...