A new study says the coronavirus vaccine shot might be less painful if you “put on a happy face”. Researchers at the University of California, Irvine surveyed more than 230 people after they received a saline injection and found that those who had maintained a genuine smile, bringing up the corners of the mouth and creating crow’s feet around the eyes, reported almost half as much pain as those who kept a neutral or poker face.
Study says smiling while getting covid vaccine will make it hurt less
CBS Boston, Dec. 7, 2020 (Video)
December 7, 2020