Add Yahoo as a preferred source to see more of our stories on Google. Have you ever felt like your life is ruled by the clock? Well, it actually is -- but it's not a clock you can see. The circadian ...

Junctional rhythm is an irregular heart rhythm that stems from a natural pacemaker in the heart known as the atrioventricular junction. The heart has several built-in pacemakers that help control its ...

A junctional escape rhythm is when the heartbeat starts in a different part of the heart than it should. This type of arrhythmia may not need treatment, but a doctor does need to investigate the ...

YOU HAVE TO SLEEP AT THE RIGHT TIME. MINDY: IT IS VERY HARDWIRED. WE FOUND OUT THAT EVERYTHING SLEEPS AND EVERYTHING HAS A CIRCADIAN RHYTHM TOO. IT’S AN INTERNAL CLOCK. OUR BODIES ARE HARD-WIRED BY ...