Staying calm in an emergency is the most important thing you can do. In order to keep your cool, try to steady your breathing. Fear triggers an almost immediate response that speeds up your heart rate. Repeatedly in hale and exhale for three seconds each to steady the rhythm which will also help you focus. Next engage your senses, touching a favorite piece of jewelry or a soft material will also heave a calming effect on your nerves. Lastly be fully engaged in the moment. When you are reacting to a situation think of only what you need to do in the exact moment, do not try to think of all different scenarios and how the emergency could play out, this will keep you from taking action.