London - Children as young as six are losing hours of sleep after using electronic gadgets before bed.
More than a third of six-year-olds are allowed to sit in front of tablets, laptops and smartphones in the hour before bedtime, a study has found.
Children who do this get 20 minutes less sleep a night on average than those who avoid electronic devices. That adds up to more than two hours’ lost sleep a week, or 121 hours in a year.
A study led by the University of Sheffield questioned 1 000 British parents with children aged six to 11 about their sleep habits.
They found 60 percent of 11-year-olds use technology in the hour before bed. This is concerning because smartphones and tablets produce blue light, which is believed to disrupt important signals that tell the body it is dark and time to go to sleep, and to suppress the sleep hormone melatonin.