Brain’s fear center is equipped with built-in suffocation sensor
Editor | Nov 26, 2009 | Comments 0
The portion of our brains that is responsible for registering fear and even panic has a built-in chemical sensor that is triggered by a primordial terror — suffocation. A new article shows in studies of mice that the rise in acid levels in the brain upon breathing carbon dioxide triggers acid-sensing channels that evoke fear behavior.
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