Social media and celebrity culture ‘harming young people’

Young people’s mental health damaged by ‘unobtainable’ body image in online world

Upsurge in sleeping problems due to UK’s longest heatwave in 40 years

People left tired, irritable and less productive at work after nights of poor shuteye

Can an apple cider vinegar a day keep the doctor away?

Sales have soared as ‘clean eaters’ hail the health benefits of the kitchen cupboard staple

Britain needs to get fit. But warnings and advice alone aren’t enough

It’s taken an integrated strategy to reduce smoking. We need a similar policy to change the way we look at fitness, says public health academic Mike Kelly

Enough of the knob gags: penis size is a mental health issue

An academic researching penis size and self-esteem was bombarded with puerile messages. But for many men, it’s no joke, writes Rhiannon Lucy Cosslett

Defunct Jawbone fitness trackers kept selling after app closure, says Which

When Jawbone liquidated its assets, its wristbands became useless without companion app

Sajid Javid looks into easing rules on medical cannabis prescription

Advisory Council on the Misuse of Drugs to carry out study for home secretary

Scottish government plans restrictions on sugary and fatty foods

Ministers’ plans to tackle obesity in some cases go further than health ministers in England

Who rules the world? Narcissists. Let’s stop giving them all the breaks

So, research shows narcissists do life better. The meek among us must keep them in check, says humble Guardian columnist Stuart Heritage

70 years of the NHS: a revolution that is reborn every day

The creation of the health service changed Britain. Yet while this vision is under severe threat, it has also never been more keenly cherished