Ha ha ha ha, ah hee ah hoo ah ha. Is there a particular chemical cocktail that can make you die laughing?

In my latest Because Science, I’m digging into the chemicals that kill in The Joker’s infamous laughing gas. Victims that breathe in the deadly miasma develop hideous grins and discolored faces before laughing themselves into the grave. Do we know of any poisons that could do that? And how accurate are the explanations in the comics? Surprisingly, a recent issue has a plausible formula!

Why so serious about science? You know the answer to that by now.

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Check out my last video on how to make a Ghostbusters proton pack, subscribe to this playlist to stay current with the show, buy a Because Science shirt, and follow me on Twitter to give me a suggestion for the next episode!