science
Wi-Fi Signals May One Day Be Used to Tell If You’re Dreaming

Researchers from MIT have developed a wireless, artificially intelligent sensor that can detect the various stages of sleep, including rapid eye movement—the sleep stage associated with dreaming. The non-invasive system could change the way clinicians diagnose sleep disorders and other health complications. Read More >>

health
Why Are You Always Staying Up Past Your Bedtime?

The consequences of not getting enough sleep are evident to all of us—and yet we’re constantly staying up later than what our internal biological clocks are telling us. A new study shows the elusive nature of what’s to blame. Read More >>

history
Humans Who Lived in Caves to Study Isolation Slept for 30 Hours at a Time

A year in space is nothing—to study the isolation that astronauts might experience, scientists first lived in caves for months at a time, isolated from all environmental cues. No offense to Commander Scott Kelly, I’m sure zero-gravity life is hard. But the caves seem much worse. Read More >>