How your genes could affect the quality of your marriage

How important is it to consider a romantic partner's genetic profile before getting married?

How important is it to consider a romantic partner's genetic profile before getting married?

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Sex & Relationships

Islam spread through the Christian world via the bedroom

Unions between Muslims and non-Muslims played a huge part in the expansion of Islam.

A Pakistani Muslim prays at an illuminated mosque in connection with Eid-e-Milad-un-Nabi, the birthday of Prophet Mohammad, in Karachi on November 20, 2018. Photo: ASIF HASSAN/AFP/Getty Images

There are few transformations in world history more profound than the conversion of the peoples of the Middle East to Islam. Starting in the early Middle Ages, the process stretched across centuries and was influenced by factors as varied as conquest, diplomacy, conviction, self-interest and coercion. There is one factor, however, that is largely forgotten but which played a fundamental role in the emergence of a distinctively Islamic society: mixed unions between Muslims and non-Muslims.

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Culture & Religion

Decades ago, ecstasy — yes, MDMA — was used in marriage counseling

A revival is occurring, and we sure can use it.

Photo credit: Stephan C Archetti / Keystone Features / Hulton Archive / Getty Images
  • For the first decade after it was synthesized, MDMA was used in individual and couples therapy.
  • Many therapists spoke against the criminalization of MDMA in 1985 due to the drug's therapeutic potential.
  • A revival has occurred in recent years, with the government allowing clinical trials to move forward.
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Sex & Relationships

Why are people sexually attracted to cartoons? Evolution.

Nikolaas Tinbergen's concept of "supernormal stimulus" explains why humans are attracted to a heightened version of reality.

(Photo: Walt Disney Pictures)
  • According to Pornhub's annual statistics, "hentai" and "cartoons" were among the most popular categories in 2018.
  • Such pornography is a supernormal stimulus, an artificial object that triggers an animal's instinctual response more intensely than natural analogs.
  • Supernormal stimuli not only explain our heightened response to pornography, but also art, junk food, and social media.
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Mind & Brain

Researchers find how to add more "love hormone" to your relationships

A study looks at the chemistry of couples engaged in different activities.

Henri Leconte at art class. 2019. (Photo by Kelly Defina/Getty Images)
  • Leisure activities can help release more oxytocin, say researchers.
  • Oxytocin is a hormone linked to social and sexual interaction.
  • Couples who took art classes and played board games together released oxytocin.
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Sex & Relationships