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				Originally posted by novakru  
There was a real professor who did intensive research, for a University, into a drug that causes paralysis and low vital signs....aka-zombie state.  
If I find out more-I'll post it. 
			
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 If you go to howstuffworks.com, look for "Supernatural", click on "More", you'll find a whole diatribe on zombies.  I'm too lazy to read through the whole thing.  I know it talked about puffer fish and some kind of frog.