Atopy is a predisposition toward developing certain allergic hypersensitivity reactions. Atopy may have a hereditary component, although contact with the allergen or irritant must occur before the hypersensitivity reaction can develop.
As of 2012, 63.9 percent of players playing in Major League Baseball are white. There is no way of telling the exact number due to the number of players.
In 2010, 67% of all NFL players were black and 31% were white. In 2011, a total of 74.8% of the NFL's league office management is white. A full 100% of the majority owners in the league are white. A total of 22% of the head coaches are black, while 31% of the assistant coaches are black. Winston Moss of the Packers is one of seven black assistant head coaches in the league.