From biting your nails to pulling your hair, some bad habits are notoriously hard to break. To help people put a stop to these common behaviors, Aneela and Sameer Kumar, co-founders of HabitAware, created Liv — a smart bracelet launching Tuesday that gently reminds users when they’re performing a habit they wish to kick.

"The first step is being aware and bringing it to your attention... [Keen2] really is a brilliant idea."
–Howie Mandel on the Marcus Lemonis podcast