- sciencemag.org - Martin Enserink, Kai Kupferschmidt, and Nirja Desai
Since so many of us are falling short when it comes to sleep, we decided to investigate what exactly happens during those seven to nine hours, how to determine the right amount of zzzs for you and what can happen to your brain and body if you're not reaching your target sleep quota. Check out our other "How Bad Is It Really...?" questions below! Some of the most-asked questions might surprise you.