What stops you from doing healthy things every year

If a man does not use a condom will he get a std

David, an aspiring baseball player, was struck on the left side of his face with a fastball pitch. he was not wearing a safety helmet. his zygomatic arch was crushed, as well as parts of the temporal bone. following the accident and reconstructive surgery, he noted that his left lower eyelid was still drooping and the corner of his mouth sagged. what nerve damage did he sustain?

What is the name of the device that senses the current flowing,tripping the circut,and cutting off the electricity