Risky sexual behaviour threatens to derail Aids progress, UN report says

UNAids says HIV drugs are saving lives, but prospects of changing behaviour to stop spread of infection are not promising

Happy teenagers earn more as adults

A study suggests that the happiest people at 16 and 18 earn around 10% more than the average income a decade later

International Men’s Day: the seeds of a new movement

Ally Fogg: Men's issues must be considered alongside those of women, not least because our lives and welfare are intertwined

Hundreds of Irish women forced to come to Britain for abortions

Amid pro-choice rally at Savita Halappanavar's death, activists reveal the rapes and illness forcing women to seek abortions

Making porn actors wear condoms is not the best way to protect us

Stoya: Measure B, a law requiring the use of condoms in adult movies in LA County, fixes a problem that doesn't exist. Our sex is safe

Is China failing its young people on sexual health?

Awareness among China's 161 million 15-24-year-olds is poor, while sex education and services are said to be inadequate. Frederika Whitehead reports

Unanswered questions over death of pregnant woman in Irish hospital

Denis Campbell: Inquiries now under way must establish when doctors should have realised there was a risk to Savita Halappanavar's life

A doctor on why late abortion should remain legal

Amid signs that ministers are keen to reopen the debate, Frances Marks writes about the terrible consequences of illegal terminations that she saw in the 60s – and why the law must not be changed

LA County’s Measure B is a major win for safe sex in adult entertainment

Gail Dines: The failure to block the pro-condom ballot, for all their political leverage and wealthy donors, is a knock for Big Porn's exploiters

In Africa, we must do the most good with each pound spent on Aids-HIV

Bjørn Lomborg: With donor money to fight HIV and Aids falling, spending in sub-Saharan Africa must be targeted to get the best results