In today’s hectic world, it may be difficult for many to get adequate sleep. But, those who manage to clock up seven hours of shut-eye every night can slash the risk of health problems, PTI reports from London.

According to a study by scientists in Britain, seven hours of sleep is a must for sound health as it reduces the risk of heart problems — but getting an hour more or less can be fatal. “Sleep represents the daily process of physiological restitution and recovery. Our findings indicate that consistently sleeping around seven hours per night is optimal for health,” Professor Francesco Cappuccio, of the University of Warwick, said.

“Insufficient sleep is a risk factor” particularly in weight gain, high blood pressure and type two diabetes.