Dictionary hyperventilation(hī'pər-vĕn'tl-ā'shən) n. Abnormally fast or deep respiration, which results in the loss of carbon dioxide from the blood, thereby causing a fall in blood pressure, tingling of the extremities, and sometimes fainting. Ok Howard you are correct in that it is blood pressue that causes fainting, also you are incorrect in that it can happen due to hyperventilating the idea that its an old wives tale that I just thought up is very insulting Now as I stated everything in my post as being from personal experience, I have passed out while having sex due to hyperventilating!!!! What some consider to be multiple orgasms to me only feels like one, this is my feeling. While I have read many articles on this site and may eventually read the one your refering to. telling me to go read it as if I am a child who has no clue how to orgasm is down right rude!! not to mention that article contains information about the Gspot orgasm that I commonly see you stating everyone can have. I can't and may never have one and don't feel like reading about things that I know are not possible for me. Every person is different and every situation is different to put everyone in one big bowl and say have at it is not OK.