DEER PARK, TX (KTRK) -- The first day of July started out like any other day. Zach Frazee, 13, stepped up to bat at a scrimmage game, like he had done hundreds of times before. But this time, a ball ...

You're curled up on the couch, finally relaxing after a long day when suddenly, your heart starts racing. You're obviously ...

Many people find themselves lying in bed, suddenly aware of their heart beating faster than usual. When the room grows still, the pulse in your chest can feel louder, stronger and impossible to ignore ...

It's a common yet uncomfortable sensation when the heart beats rapidly for a second or two and then becomes normal. Whether ...