吸入痎氣致死一問

由 http://wiki.answers.com/Q/How_is_helium_harmful_to_human_body


Inhaling helium deprives your body of oxygen. So basically you're not breathing. Your body reacts normally to helium since it is a light gas, and you won't feel that suffocating feeling- but it will make you pass out without warning. That and no oxygen to your brain kills irreplacable cells.
Helium itself is not harmful and in fact divers sometimes use a breathing mixture composed of helium and oxygen for deep descents.
Also when mixed with oxygen it is used for asthma treatments.

氦氣並非有毒，但會使人死於腦缺氧，(不知不覺中死去)。
二氧化碳 窒息 應該會死得好辛苦。