"There are a few reasons it's important to be aware of how much time in daylight you're getting," Cheung explains. "For adults, research shows that spending around 20 minutes outdoors every day has both physical and mental health benefits, including providing essential vitamin D and even boosting your mood."

If you wear your Apple Watch to bed and have Silent Mode activated, your morning alarm will be silent too, attempting to wake you with soft haptic taps rather than any noise. Many users find this sufficient, but others sleep through the alarm with potentially dire consequences. Apple has unveiled a new feature that should solve this problem.

OS 11.4 introduces a new feature for the alarm that lets users who sleep with the Apple Watch do something they couldn’t before.