Hyperventilation refers to fast breathing. In some cases, people who hyperventilate may breathe deeper than usual. Hyperventilation may occur due to an underlying condition or emotional distress. A ...

Hyperventilation occurs when you start to breathe very quickly, causing an imbalance between inhaling oxygen and exhaling carbon dioxide (CO 2). This reduces the amount of CO 2 in the body. Low carbon ...

The body has a set of physiological responses to danger: the pupils dilate, respiration deepens, heart rate and blood pressure rise, muscles tense for action. The gastro-intestinal system reacts also.