For about 175 years people have been huffing nitrous oxide for everything from vision quests to anesthetic to get plain old high. And after all that time we are only now beginning to understand how it works on our brains.
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Selects: How Narcolepsy Works
52:41

Rope, yeah ROPE!
43:31

Short Stuff: Did a shipwreck double the size of the United States?
11:46