In TODAY.com's Expert Tip of the Day, a dentist explains why it's important to floss at the right time of day.

The Geminids are peaking this weekend. Amateurs and experts regard the dazzling celestial display as one of the year’s best meteor showers.

Timing is everything, especially when it comes to grocery shopping. The difference between a peaceful, productive trip and a chaotic scramble through crowded aisles often comes down to when you walk ...

Experts say taking your vitamin D supplement at the wrong time of day may interfere with your sleep. Here’s the best time to ...