According to Oxford University academic, Dr Paul Kelley, starting work before 9am is similar to torture! Dr Kelley wants the business and school day to begin at 10am and reports that GCSE results could be boosted by 10 per cent as a result of the later start.
Starting work or school at 9am could be a threat to our performance until we hit the age of 55, when we start to need fewer hours of sleep. The sleep deprivation we experience is a result of early starts, and not sleeping until our body clocks wake us up naturally.
Dr Kelley suggests that older teens should be starting school at 11am to allow them to have a lie-in. As younger children can wake up earlier naturally, Dr Kelley suggests staggered times in the morning; younger children should start at 8.30am, 16 year olds, 10am and 18 year olds 11am.
Evidence is growing that a lack of sleep can lead to weight gain, high blood pressure and mental health problems. As young people are more vulnerable to sleep deprivation, these staggered starts would allow for that much-need lie-in.
Dr Kelley also added: "As children enter their teenage years, they require more sleep as the internal body clock shifts later, delaying the phase at which sleep can be initiated". Adolescents spend more time getting to sleep at night - extending their 'wake maintenance zone'.