For many years, football coaches, Olympic athletes, and even Muhammad Ali have advocated sexual abstinence the night before an athletic event. Marty Liquori, one the world's number one-ranked 5,000-meter runner believes that “Sex makes you happy, and happy people don't run a 3:47 mile”. Marv Levy, head coach of the Buffalo Bills, insisted that the team be separated from their wives before their appearance in four Super Bowls; a policy that apparently was not successful (four losses out of four Super Bowls). On the other hand, there are also plenty of anecdotal stories of athletes who claim to have benefited from sex the night before an event. Both U.S. track star David Wottle and Canadian downhill skier Karin Lee Gardner attribute their Olympic gold medals in part to their “pre-race preparation". As legendary New York Yankees manager Casey Stengel put it, “It's not the sex that wrecks these guys, it's staying up all night looking for it.” Considering the controversy surrounding the topic, the objective of this editorial is to summarize the literature on whether sex the night before competition affects performance, and to suggest possible future areas for research.