16 Your tolerance for alcohol plummets.
Thanks to the low pressure and lack of humidity in the cabin, just a few drinks goes a long way on an airplane. You might be able to drink everyone under the table while on flat ground, but up in the air, think twice about that third vodka soda if you don’t want to end up unpleasantly intoxicated. And for thrilling things to do without ever boarding a plane, consider getting one of these 100 Amazing Tattoos for First-Timers.
