Tylenol and Hangovers: A Dangerous Mix?

(Via Risk Bites) Acetaminophen -- the active ingredient in Tylenol -- is bad news for your liver if you take too much of it. The same is true for alcohol. So should you avoid popping Tylenol to take the edge off the morning-after hangover? Probably yes -- although the biology behind how the two substances interact is more complex than you might imagine.