For most of us, our alarm going off in the morning (or after a nap) isn't our favorite part of the day. We set alarms because getting out of bed can be a struggle, and many of us need an extra jolt to ...

Staying aware of your surroundings matters. That includes hearing smoke alarms, appliance beeps or a knock at the door. Still, real life gets busy. You wear headphones. You get focused. Sounds slip by ...