An aphroisiac is an agent which is used in the belief that it increases sexual desire. The name comes from Aphrodite, the Greek goddess of sensuality. Throughout history, many foods, drinks, and behaviors have had a reputation for making sex more attainable and/or pleasurable. However, from a historical and scientific standpoint, the alleged results may have been mainly due to mere belief by their users that they would be effective (i.e., the placebo effect). In particular, medical science has not substantiated claims that any particular food increases sexual desire or performance.