Tsukuba, Japan—During deep sleep, brain wave amplitude increases, and "δ (delta) power," a key objective indicator of sleep quality, is observed; higher delta power corresponds to deeper, more ...

From checking emails while on a call to cooking dinner and helping with homework, we all operate through multitasking. But new research suggests that our ability to juggle multiple tasks isn't a ...

Multitasking may seem like a good way to get more done — but evidence suggests the opposite. Here’s the truth about multitasking, and what to do instead. Ever feel like there aren’t enough hours in ...