Research on swinging has been conducted in the United States since the late 1960s.
When Stossel asked swinging couples whether they worry their spouse will "find they like someone else better," one male replied, "People in the swinging community swing for a reason.Most religious communities and moralists regard swinging as adultery, not withstanding that it is with the knowledge, consent or encouragement of one spouse to the other.Some argue that strict monogamy is the ideal form for marital relationships and that sexual relations should only take place between marriage partners or, perhaps, between partners in a committed monogamous relationship.90% of those with less happy relationships said swinging improved them.
Almost 70% of swingers claimed no problem with jealousy; approximately 25% admitted "I have difficulty controlling jealousy when swinging" as "somewhat true", while 6% said this was "yes, very much" true.
According to the Dutch study, "the combined rates of chlamydia and gonorrhea were just over 10% among straight people, 14% among gay men, just under 5% in female prostitutes, and 10.4% among swingers." Many couples enter swinging while in secure relationships, providing added motivation to avoid excessive health risks.