Alcohol also depresses nerves that control involuntary actions such as the gag reflex, which prevents choking. Since alcohol irritates the stomach, people who drink an excessive amount often vomit. Without a properly functioning gag reflex, they could choke on vomit, which could kill an unconscious person.
A person's blood alcohol concentration (BAC) can continue to rise even while passed out as alcohol in the stomach and intestine continues to enter the bloodstream. Assuming the person will "sleep it off" is dangerous.
You can get alcohol poisoning by drinking too much. If you want more information on this subject, I suggest checking out the following website:
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