Technology firm Philips has come up with blue-tinted light designed to wake children up and become more alert by affecting their internal body clock. A total of 166 pupils and 18 teachers took part in the year-long scientific experiment and discovered that reading speed increased by 35 per cent, number of errors fell by 45 per cent while restlessness, or hyperactivity, fell by 77 per cent when the blue light was on. – read more from DailyMail