Do you ever wonder why it’s so hard for you to fall asleep? Well, aside from worrying about that embarrasing thing you did in high school several years ago, it might have something to do with what you eat close to bedtime, the environment – being too loud or too quiet, having your thermostate set too high or too low, or the phases of the moon.

THIS IS COOL. I WANT TO LEARN SOMETHING ELSE, TOO!

Video via – Life Noggin
Further Readings And References @ Psychology World, National Sleep Foundation, Live Science and Time.