Subtle changes in how blood flows through the brain and how brain tissue uses oxygen may be closely linked to Alzheimer’s ...

In a new study, yawning has been shown to push the brain’s clear fluid in the opposite direction of a deep breath.

It’s fairly well understood by now that prolonged sitting—whether at your desk, at the wheel or on the couch—can cause your muscles and joints to seize up and stiffen. But research suggests it also ...