The brand uses sleep science to help improve users’ bedtime routines, and the latest version of its signature, ...

Like Sheehe, many teachers who have poor sleep habits shrug off the immediate side effects as a mild nuisance. But bad sleep ...

Taking a dark shower could be key to better sleep. Learn more about the evidence behind this pre-bedtime home practice.

Beth Skwarecki is Lifehacker’s Senior Health Editor and has been writing about health, fitness, and science here since 2015. Beth was the recipient of the 2017 Carnegie Science Award in science ...