Fist bumping may be good for your health. A new study shows that bumping fists transmits significantly fewer bacteria person to person than shaking hands. One of the authors of the study says that for the sake of public health, people should adopt the fist bump as a more hygenic alternative to a handshake, especially in a medical environment. When patients and doctors shake hands, they could spread germs that lead to what's called " healthcare-associated infections." More than 70-thousand patients with such an infection die every year. The study appears in the August issue of the American Jounral of Infection Control."