According to a recent study, the artificial light emitted by iPads, computer screens, Blackberries, and all those other electronic devices that you rely on so heavily is keeping you from falling asleep. Yes, technology makes you tired.

Apparently using these devices an hour before bed keeps the body from producing melatonin, a hormone that makes you fall asleep. That means people stay up later or have a hard time getting their allotted shut eye. And for those who do manage to get some rest, they're being woken up by phone calls, text messages, emails, Facebook status updates, and Foursquare push notifications pinging all through the night. (When you have text messages to respond to, who needs sleep anyway?) Pretty soon we'll just be awake all the time, our eyeballs forced open Clockwork Orange-style so that we won't miss one minute or communication.

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