People who enjoy a weekend lie-in could be onto something, as a new study found those who ‘catch up’ on lost sleep at weekends may potentially lower their risk of heart disease by up to 20%. Researchers examined data from more than 90,000 people in the UK, which suggested compensating for lack of sleep during the week with some extra time in bed at weekends could help mitigate the negative effects of sleep deprivation. The study, from the National Centre for Cardiovascular Disease at Fuwai Hospital, Beijing, found that sleep-deprived people with the most ‘catch-up’ sleep at weekends saw their …