A 2015 study by the American College of Paediatricians reveals that: Male subjects demonstrated increased callousness toward women. Subjects considered the crime of rape less serious. They were more accepting of non-marital sexual activity and non-coital sexual practices such as oral and anal sex. They became more interested in more extreme and deviant forms of pornography. Subjects were more likely to say they were dissatisfied with their sexual partner and were more accepting of sexual infidelity in a relationship. They valued marriage less and were twice as likely to believe marriage may become obsolete. Men experienced a decreased desire for children, and women experienced a decreased desire to have a daughter. Subjects showed a greater acceptance of female promiscuity.

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