Everyone, at some point, is going to get sick. Especially for parents dealing with small children, illnesses can be particularly worrying. A body thermometer can help parents determine whether or not their child's temperature is too high or too low so they will know whether or not it's best to go to the hospital. The best body thermometers will have a digital LED display, so there's no guessing as to what the reading is. School's and other places where there are lots of people should keep body thermometers on hand to help teachers know if their students are really sick or not.