But the fact that you can't sleep might not be your fault. It turns out, night owls have an internal clock that functions differently. Forcing them to wake up early could have serious health ...

People with delayed sleep phase disorder (DSPD) have a slight shift in their sleep-wake circadian rhythm that makes them “night owls.” Some of these individuals also have a mutation in the gene, CRY1, ...

Scientists have updated the "Doomsday Clock," putting humanity officially at 90 seconds to midnight. What is the Doomsday Clock and what is its significance? Here's everything you need to know ...