Kissing may seem like a relatively straightforward way of passing the time, but it's can also be a health and safety minefield. Much in the same way licking the floor of a public bus comes with its pitfalls, so does puckering up to someone else.
Anyone who's ever Googled "how to fall asleep" knows about the endless supply of sleep hygiene advice: tips, like "take a shower before bed" or "don't eat after 6 p.m.", that are meant to help clean up your bedtime routine and enhance sleep quality. Though some might be helpful, people who truly can't fall asleep-like the 70 million Americans who have a sleep disorder-need more than small changes.