CEOs may like to greet the dawn with a 10-mile run and a fistful of foraged mushrooms, but according to new research, the rest of us can protect our hearts by doing absolutely nothing - at least until noon on weekends. Dr Nawon Lee, presenting at the annual congress of the European Society of Cardiology, revealed that a weekend lie-in may shield you from high blood pressure. 'People should not feel lazy or guilty for sleeping a little longer on the weekend,' Dr Lee said, clearly never having met a five-year-old.

Arwa Mahdawi, a self-proclaimed fan of sleep and the snooze button, feels thoroughly vindicated. She plans to convey this scientific breakthrough to her own early-rising child via a bedtime story, though she admits that peer-reviewed evidence may not sway a toddler hell-bent on 6am wake-up calls. Still, as she puts it, if CEOs want to rise at 4am and run 10 miles before breakfast, they're welcome to it - she'll be safeguarding her cardiovascular health by staying in bed, thank you very much.