Chicago: Heterosexual couples that split childcare duties have higher quality relationships and sex lives than those who don’t, according to new research that will be presented at the 110th Annual Meeting of the American Sociological Association.

Chicago: Romantic opportunities appear to influence women’s sexual identities — but not men’s, suggests a new study recently presented at the 110th Annual Meeting of the American Sociological Association.

Chicago: Early adolescent girls lose friends for having sex and gain friends for ‘making out’, while their male peers lose friends for ‘making out’ and gain friends for having sex, finds a new study that will be presented at the 110th Annual Meeting of the American Sociological Association.

Washington: Abusive and controlling men are more likely to put their female partners at sexual risk, and the level of that risk escalates along with the abusive behavior, a UW study found.

Ann Arbor: With more kids online and using cell phones at increasingly younger ages, two issues have quickly climbed higher on the public’s list of major health concerns for children across the US: sexting and Internet safety.

Birmingham: A drive to find out why the United States has the highest rates of treatable sexually transmitted diseases in the developed world has been the career focus of one University of Alabama at Birmingham infectious disease expert.

Washington: Having friends who suffer from depression doesn’t affect the mental health of others, according to research led by the University of Warwick.

Washington: Violent video game play is linked to increased aggression in players but insufficient evidence exists about whether the link extends to criminal violence or delinquency, according to a new American Psychological Association task force report.

Toronto: The practice of sexting may be more common than generally thought among adults. More than eight out of 10 people surveyed online admitted to sexting in the prior year, according to research presented at the American Psychological Association’s 123rd Annual Convention.

Washington: Counties in the United States with more beautiful weather and scenery have lower rates of membership and affiliation with religious organizations, according to a Baylor University study.