I'm convinced I'm more hiccup-prone than the average person. And although a recent discovery that eating unaccompanied whipped cream works as a mediocre cure has made this affliction easier to handle, I still want to know what the heck is going on to cause all these hiccups. In a recent episode of the PBS Digital Studios series "It’s Okay To Be Smart," host Joe Hanson tackles the science behind hiccups and other common involuntary behaviors of the human body, including yawning, eye twitches, sleep starts, and sun sneezing—a tick experienced by just one in four people, which is why you might not know what that one is.

The video gives a great overview, but if you're looking for a more detailed answer, we've actually addressed some of these mysteries right here on the site. You can read more about hiccups, yawning, and the bonus behavior: pee shivers.