If you don’t want your doctor lecturing you about your blood pressure, turn off your cell phone before your next exam. That’s according to Dr. Gary Schwartz, a professor of medicine at the Mayo Clinic College of Medicine. He says that answering cell phones causes a temporary – but significant – spike in blood pressure. That’s because cell phone calls are mini-stress episodes. And even though almost everyone carries a phone, we still feel anxious when we’re interrupted by a call. Yet another reason why we need to disconnect from our cell phones to really relax.