It’s that time of the night again: you set your alarm, tuck yourself in and turn out the lights. But maybe you don’t fall asleep right away. So, you pick up your phone, take a little scroll through Instagram or play a few rounds of Candy Crush, and maybe even make a move in Words with Friends.
Suddenly, it’s two in the morning and now you’re really wired.
That was me pretty much every night until one strange day last spring.