With life’s busy schedule, keeping track of time without a clock is challenging. We’re so dependent on this device that even when we go to sleep, we need an alarm clock to remind us to wake up.

Waking up is hard, but the best alarm clock can make mornings a little bit easier — or at least help you keep to a schedule. From the best sunrise alarm clocks to the best silent alarm clocks ...

One overlooked culprit in the world’s obesity epidemic may be the alarm clock, according to Till Roenneberg, a professor at the University of Munich’s Institute of Medical Psychology.

Hear how we covered some of the biggest news stories since 1931.

This project aims to empower users to lead a healthier and safer lifestyle.