Night owls may be more prone to heart disease and diabetes, study finds

Research shows early birds more sensitive to insulin levels and burn more fat at rest and during exercise

Four radical new fertility treatments just a few years away from clinics

Synthetic embryos and three-person babies among advances revised fertility laws need to consider

My adult ADHD drugs felt like a lifeline. Then came the scary side-effects …

After a year on prescription stimulants, I started to unravel. Would a desperate experiment with street narcotics make me see things differently?

Can taking a pill really stop you getting a hangover? There’s one way to find out …

Even at £30 a packet, the Myrkl ‘pre-drinking’ pill sold out before its UK launch. I spent four days finding out if it does indeed reduce the effects of alcohol

Sleep scientist Russell Foster: ‘I want to take the anxiety around sleep away’

The Oxford professor has studied our circadian rhythms for decades – and says much of what we think we know is wrong

Beetroot juice may aid people with coronary heart disease – study

Research suggests a daily glass reduces harmful inflammation by boosting nitric oxide levels

I thought having a baby might turn me into an ‘elite sleeper’. I was wrong

Scientists have found 3% of the population need less shut-eye than the rest of us. Could I train myself to be one of them, asks Arwa Mahdawi

Does turmeric’s reputation translate into real health benefits?

Clinical trials show that curcumin, present in the spice, may help fight osteoarthritis and other diseases, but there’s a catch – bioavailability, or how to get it into the blood

Seven hours’ sleep is ideal amount in middle to old age, study finds

Too much and too little sleep linked with worse cognitive performance and mental health

Biologists warn against toxic SAMe ‘health’ supplement

Substance marketed online to ease range of joint and liver conditions, and to promote wellbeing, should not be used