Humor is the capacity of events to entertain and make other people laugh. The expression originates from humoral medicine, an ancient Greek field of medicine that postulated that human health and emotions were impacted by the balance of bodily fluids known as humours. Humans of every background and generation find humor to be appealing. An someone with a sense of humor is able to make most people smile, laugh, or feel pleased by something funny. It is likely that the hypothetical person lacking a sense of humor would find the action causing it puzzling, strange, or even absurd.