There's more revealed in the leak. There are two new colors shown off. There's a lovely-looking lilac, and a very fetching orange. They also appear smaller in the hand than the older Powerbeats Pro ...

You probably were told your resting heart rate at your last checkup. Or maybe you get alerts throughout the day thanks to a fitness tracker or smart watch. But what does the number really mean? And ...

Enhance your time in the 'pain cave' with our bike editor's picks to build the ultimate indoor bike training setup .

Zone 1 (55-65% of max heart rate): This is the "conversational pace" zone. You work at a light intensity, so you can easily chat without losing your breath. This pace is ideal for burning fat and is ...