School’s out for Egypt’s sex education

Mohamed El Dahshan: The Egyptian government's decision to remove sex education from the curriculum is a worrying backward step

Scientists find cause of pre-eclampsia

Discovery could lead to treatment for life-threatening condition that can kill pregnant women and their babies

British IVF pioneer Robert Edwards wins Nobel prize for medicine

Robert Edwards, the British scientist who pioneered IVF, was responsible for the conception of Louise Brown, the world's first test-tube baby

Dementia: the human cost of each diagnosis

As the World Alzheimer's Report 2010 is published, Andrea Gillies – author of Keeper – describes the emotional toll of living with a relative who has the condition

Low-dose Prozac may help relieve the misery of PMS

Study in mice suggests that just a tenth of the dose of Prozac most commonly prescribed for depression could reduce the symptoms of PMS

Failure to act on early signs of rheumatoid arthritis could prove fatal

Specialist says rheumatoid arthritis can be halted or even reversed if treated early, but symptoms are often ignored

Greece: refusing to quit

Helena Smith: Could Greece's latest attempt to ban smoking, this time on patriotic grounds, finally persuade Greeks to kick the habit?

If sex with HIV is a crime, so is swimming with verrucas

Zoe Williams: A trial like that of German pop star Nadja Benaissa could happen here too: the law isn't about public health, but pillorying promiscuity

Nadja Benaissa’s HIV trial is a distracting sideshow

Edwin J Bernard: Laws and prosecutions as a result of non-disclosure of HIV-positive status are ineffectual, counterproductive and unjust

‘In those days I was careless,’ says pop star accused of infecting man with HIV

Nadja Benaissa of No Angels tells German court she did not mean to harm, having been advised passing on virus unlikely