The Minnesota study noted that 88 per cent of the students kept a mobile phone in their bedroom.īut many parents, and some students, object to shifting the start of the day later. That inclination can be further delayed by the stimulating blue light from electronic devices, which tricks the brain into sensing wakeful daylight, slowing the release of melatonin and the onset of sleep. Sleeping well can also help moderate their tendency toward impulsive or risky decision-making.ĭuring puberty, teenagers have a later release of the “sleep” hormone melatonin, which means they tend not to feel drowsy until around 11 pm.
Researchers have found that during adolescence, as hormones surge and the brain develops, teenagers who regularly sleep eight to nine hours a night learn better and are less likely to be tardy, get into fights or sustain athletic injuries.
“Even schools with limited resources can make this one policy change with what appears to be benefits for their students,” Dr Miller said. But she said its methods were pragmatic and its findings promising. In results released this month, they found that the later a school’s start time, the better off the students were on many measures, including mental health, car crash rates, attendance and, in some schools, grades and standardised test scores.ĭr Elizabeth Miller, chief of adolescent medicine at Children’s Hospital of Pittsburgh, who was not involved in the research, noted that the study was not a randomised controlled trial, which would have compared schools that had changed times with similar schools that had not. Researchers at the University of Minnesota, funded by the Centers for Disease Control and Prevention, studied eight high schools in three states before and after they moved to later start times in recent years. New evidence suggests that later high school starts have widespread benefits. The Seattle school board will vote this month on whether to pursue the issue. In the last two years, schools in California, Oklahoma and New York, have pushed back their first bells, joining early adopters in Connecticut, North Carolina, Kentucky and Minnesota. The sputtering, nearly 20-year movement to start high schools later has recently gained momentum in communities like this one, as hundreds of schools across the country have bowed to the accumulating research on the adolescent body clock. Could the school realign the first bell with that biological reality? She was determined to convince the board of a truth she knew in the core of her tired body: Teenagers are developmentally driven to be late to bed, late to rise. That was when the sleep-deprived teenager turned into a sleep activist. “I thought, if that happens, I will die,” recalled Jilly, 17. Then she heard that the school board was about to make the day start even earlier, at 7.20am. But last year, she rarely made it into the frantic scrum at the doors of Rock Bridge High School by the first bell, at 7.50am. Hastily applied makeup while her fuming father drove.
She set three successive alarms on her phone. COLUMBIA - Jilly Dos Santos really did try to get to school on time.
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