Getting to sleep can be a nightmare. Ticking clocks,
worried thoughts, fidgeting partners - so many things that get
between us and those forty winks. There are all sorts of products
out there targeting troubled snoozers, and everyone swears by a
different method. One that you might've heard of is white noise.
The static-y sound supposedly helps you drift off into a deep
slumber. Does it really work? We don't know. But a study coming out
of Northwestern University suggests that it's actually pink noise
that you should be listening to. 'What the heck is pink noise?' you
may ask. Well, let us explain.

It's similar in sound to white noise but the signal power is
distributed differently. While white noise has equal power per
hertz throughout all frequencies, the power per hertz decreases in
pink noise as the frequency increases. That means that the lower
frequencies in pink noise are louder. The louder the noise is, the
easier it is to fall asleep.

Research indicates that not only does pink noise help people
stay asleep, it also improves their morning memory too. Recall is
better, and moods are brighter. That fuzzy morning brain that makes
you pour OJ on your cereal by accident will soon be a thing of the
past. You've basically given it a deep tissue massage with sound
waves, and that can have nothing but good repercussions.

So where can you find some of this fancy pink noise? Strangely,
it occurs in a number of natural sounds - from traffic outside the
window to the sound of your own heartbeat. You know when you see
people on TV listening to waterfalls and whales as they fall
asleep? Yep, that's pink noise. You may also have heard it sneakily
playing in the background at your office, because as well as
helping with sleep and memory, it apparently can crank up your
productivity too!