The brain is a complex organ that produces all kinds of physical and emotional effects on your body. Sometimes, emotional trauma or psychological stress can trigger physical symptoms. When this ...

A lot of people faint at some point in their lives for no clear medical reason. New research provides some explanation. And now an update on the science of swooning. NPR's Jon Hamilton reports on ...

An intervention used to treat astronauts has relevance for people on the ground with medical conditions that cause repeated fainting, researchers say. Astronauts newly returned to Earth commonly have ...

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Nearly 90% of those in the largest-to-date study of patients with postural orthostatic tachycardia syndrome had elevated levels of a specific autoantibody. The finding both adds significantly to the ...