Which is a common symptom of hyperventilation?

Hyperventilation is characterized by rapid or deep breathing that often results in an imbalance of oxygen and carbon dioxide in the body. A common symptom associated with hyperventilation is a sense of euphoria or a heightened state of well-being, which occurs due to a temporary increase in oxygen levels in the bloodstream. However, other typical symptoms of hyperventilation can include feelings of lightheadedness, dizziness, and shortness of breath.

While drowsiness is generally associated with lower oxygen levels or other underlying conditions, it is not a typical symptom of hyperventilation. In fact, during hyperventilation, individuals often experience increased alertness or anxiety rather than drowsiness.

It is important to recognize that decreased breathing rate is contrary to the definition of hyperventilation, as hyperventilation involves an increase in breath rate and a sense of shortness of breath may also accompany the condition as individuals struggle to control their breathing. Thus, the symptom that reflects a common experience associated with hyperventilation is indeed a sense of euphoria.