Cure or no cure, HIV demands better testing

Patrick Strudwick: Whether or not the functional cure of a child with HIV can be replicated, misinformation and lack of testing fails those at risk

Mediterranean diet ‘cuts strokes and heart attacks in at-risk groups’

Research shows diet can reduce risk for people who smoke, have type 2 diabetes or exhibit other unhealthy characteristics

Sleeping less than six hours a night skews activity of hundreds of genes

Genes affected by lack of sleep include those governing the immune system, metabolism and the body's response to stress

Should we believe being overweight is good for our health?

Suzi Gage: A recent study has shown that having a BMI classed as overweight is associated with a lower risk of mortality than one classed as ideal. But what does this mean?

Telling pregnant women to drink no alcohol is counterproductive

Linda Geddes: There is no strong evidence that low levels of drinking during pregnancy are harmful, and to say so risks stigmatising responsible drinkers

Pregnant women urged to give up coffee

Research finds even low levels of caffeine raise risk of babies being born lighter than expected

Prince’s charity lobbied government to water down homeopathy criticism

Foundation for Integrated Medicine persuaded officials to neuter advice about homeopathy on the NHS Choices patient website

Legalising gay marriage may improve health and reduce healthcare costs

Qazi Rhaman: Research in the US suggests that allowing same-sex marriage improves the health of lesbian, gay and bisexual people

Fast food and takeaways linked to surge in child asthma and allergies

Teenagers more likely to have severe asthma and eczema if they eat fast food more than three times a week, study shows

CES 2013: the health and fitness gadgets coming your way

From a fork that tells you when you're eating too fast to a skin patch that constantly monitors your vital signs, there was plenty of exciting kit on show in Las Vegas