Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

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 ...

To keep your brain healthy, you don't need fancy equipment or hours in the gym. You can perform exercises that spark brain-boosting chemicals, improve focus, and enhance learning but remember to be ...