Study finds happiest people have sex once a week – and make it count

According to new research, happiness peaks when couples have sex once a week but does not increase with greater frequency – and quality matters

National sorority Alpha Phi refuses to back Republicans’ Safe Campus Act

The bill would prohibit colleges from acting on reports of rape until a student makes a report to police and is a rival option to an earlier Democratic bill

David Lynch and Katy Perry promote meditation with Carnegie Hall event

Transcendental meditation has been a hit for six decades with celebrities like Jerry Seinfeld and the Beatles, but the high cost makes some people skeptical

Hub of human trafficking: underground sex trade thrives in Milwaukee

An FBI raid last month pushed Milwaukee up in the trafficking rankings, and one expert says the city is home to a booming underground sex trade economy

The Guardian view on sex education: it’s all about respect

Editorial: It sounds far-fetched but starting sex education at primary school could be the key to transforming the grisly experiences of freshers’ week

How much alcohol is safe for pregnant women? US pediatricians say none

Author of survey to be published Monday says there is no ‘safe’ amount of alcohol for expectant mothers, but advice comes amid widespread uncertainty

Sleep study finds ‘hotspot’ regions where Americans don’t get enough rest

Researchers found 84 regions where there are higher levels of people getting insufficient sleep and 45 ‘coldspots’ where there are lower levels

HIV tests and more: what men stand to lose if Planned Parenthood is defunded

It’s not just women: from STD tests to vasectomies and screenings for male infertility, men are using Planned Parenthood services at a growing rate

Tinder and Grindr outraged over STD testing billboards that reference apps

Tinder demanded its name be removed while Grindr halted Aids Healthcare Foundation ads on site as AHF president called dating app companies ‘tone deaf’

Study: pregnant women with cancer can be treated without harming fetus

Chemotherapy and other treatments did not adversely affect the health of their baby when compared with those born to mothers without cancer