Waking up surprisingly alert after minimal sleep isn't true energy, but your brain's compensation. Stress hormones like ...

You may think you’re getting your beauty sleep, but your own nervous system might be waging war against rest. Experts say chronic stress keeps your body in “fight mode” even at night—blocking deep, ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...