: For first cousins, the risk increases to roughly 6%. While this is a doubling of the baseline, some researchers argue it is not as high as public stigma suggests.
Attitudes toward cousin relationships have shifted dramatically across different eras and civilizations. Kissin' Cousins
: Children of unrelated parents have a 3% risk of congenital defects. : For first cousins, the risk increases to roughly 6%
: Since the 1930s, dictionaries have defined a "kissing cousin" as a relative known well enough to be greeted with a formal kiss, such as a peck on the cheek. : Children of unrelated parents have a 3%
: Shows like 30 Rock and The Nanny have utilized the "accidentally dating a cousin" plotline to create humorous social friction.
: Outside the Western world, cousin marriage remains a preferred practice in many societies in the Middle East, South Asia, and North Africa. Genetic Considerations: Myth vs. Reality