Whether you’re stressed, exhausted or sleepless, you could find relief in white noise. It’s quite a simple concept really—a medley of broad-spectrum sound waves that produce a steady series of sound. These frequencies help the listener block out the rest of the world, as they only hear the same generic sound. Eventually, the brain blocks the external frequencies (such as chattering, or blaring horns), leaving you with a much calmer mind.
White noise helps millions of Americans sleep, by drowning outside noise and allowing them to recede into a personal state of relaxation. It can also help concentrate on the task at hand, enhancing productivity. Several meditation practitioners also recommend it. Useful for people suffering from Attention Deficit Disorder and Attention Deficit Hyperactivity Disorder, white noise provides an alternative to potentially addictive prescription drugs like Adderall and Ritalin. Even tinnitus, which is a perceived ringing in the ears (affecting one in five Americans), can be treated with white noise.