Free Republic

Sudden heart-pounding panic attacks are most likely caused by abnormalities in the brain, new evidence suggests, reinforcing earlier research on animals. People with panic disorder, according to scientists at the National Institutes of Health, have drastic reductions of a type of serotonin receptor, called 5-HT1A, in three areas of the brain. The findings, reported last week in The Journal of Neuroscience, lend credence to the suspicion that serotonin dysfunction plays a role in the disorder. "This provides evidence for what we've been telling patients all along," said Dr. Dennis S. Charney, chief of the mood and anxiety disorders research program...