31. _Glitches in the body clock itself may undermine health. 32. Here in the National Hockey League's northernmost outpost, the summer sky disorients a visitor's body clock . 33. Doctors ideally would schedule diagnostic tests at times that are in sync with the body clock . 34. Humans have a body clock that dictates the body's natural rhythms, or " circadian " rhythms. 35. When traveling from east to west, you will want to delay your body clock three hours. 36. I was approaching 33, and the body clock is ticking and it was talking to me. 37. But his body clock has run out. 38. -Get up promptly at the same time so the body clock can adjust to its new schedule. 39. They may be caused by the deletion of other genes that are unrelated to the body clock . 40. Once a person takes even a small dose of melatonin, the body clock shifts forward or backward.