Board Thread:Boruto Discussions/@comment-33066801-20170910125949/@comment-734582-20171007080958

Mushibrow wrote: I understand you guys knowledge about incest, but most parts in asia cousin marriage is okay Depends on how far removed they are and how often they do it. Inbreeding is more of a cumulative thing, where bad recessive traits slowly express themselves and over generations degrade the gene pool. A one-time act may not do much, sure, but it's the damage done over generations that makes incest undesirable.