hyperventilating means: Your body automatically does the rest. Things can alter your breathing patterns and cause you to feel anxious or short of breath. This is called hyperventilation or overbreathing. This is when your inhale becomes deeper than usual and you take longer, more powerful breaths. Your blood can be affected by deep and rapid breathing. Normal breathing is oxygen-carbon dioxide. Hyperventilating can cause your blood carbon dioxide levels to drop to dangerously low levels. It will be obvious as you feel sick. (in Community Dictionary, added by Nigel Richard)

What else does hyperventilating mean?

  • Breathing fast and deep, usually caused by anxiety or stress. (in Community Dictionary, added by Kali Horn)