This causes various symptoms such as numbness or tingling in the hands, feet and lips, lightheadedness, dizziness, headache, chest pain and sometimes fainting.
The related symptom tachypnea (Latin: "rapid breathing") is not identical with hyperventilation - tachypnea may be necessary for a sufficient gas-exchange of the body, in which case it is not hyperventilation.
Stress or anxiety commonly cause hyperventilation; this is known as hyperventilation syndrome.