What are panic attacks and what's happening when we have them?
/What is happening to the body?
"Often one of the first symptoms of a panic attack is hyperventilating (rapidly breathing in and out), which upsets the natural balance of oxygen and carbon dioxide in our system. One view says a low level of carbon dioxide in the blood directly triggers the symptoms of panic, such as feeling lightheaded and dizzy. When we breathe quickly we also build up oxygen in our blood. Paradoxically, too much oxygen is also associated with feeling short of breath."
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