A third of children leaving primary school are overweight, report reveals

The number of pupils classified as obese is also rising, new NHS statistics show

Hormone implant use rises five-fold, contraception figures show

Increase in use of devices attributed to greater access and education work at schools and sexual health clinics

Ghostface Killah: a leading dental hygienist writes

The Wu-Tang Clan's Ghostface Killah has unveiled a hitherto unknown expertise in oral health via Twitter

You can’t teach young people safe sex by inserting the letter Z into wordz

Stuart Heritage: The worst thing you can do is underestimate teenagers' intelligence

Male students eschew balanced diet in favour of supplements

Research into students' eating habits is surprising – men are more likely to eat a diet high in protein and supplements in order to improve their bodies

Walking could protect brain against shrinking, US research says

Neurologists who monitored 300 volunteers over 13 years say walkers could be defending themselves against memory loss

Jamie Oliver: ‘No one understands me. No one’

The TV chef and campaigner explains why nothing will deter him in his fight to improve school dinners

Teachers back call for pregnancy clinics in schools

Schools would be ideally placed to help pregnant teenage girls, say teaching unions

New alcohol restrictions needed, say emergency doctors

A ban on happy hours and stricter drink-drive limits are among recommendations by the College of Emergency Medicine

JK Rowling gives £10m to set up multiple sclerosis research clinic

Harry Potter author funds Edinburgh university research centre named after her mother, who was killed by the disease