A school changed its start time from 7:30 a.m. to 8:15 a.m. Here's what happened.

According to a new study in Singapore, the opening hours of the school are good for the health of the students. This reflects the results of sleep research conducted in the past in the West.

This paper, published in the SLEEP Journal of Oxford University Press, shows that the school's starting time can be changed from 7:30 AM to 8:15 AM, without having to influence the course of ladies junior high school in Singapore or delay the end time I can explain that I can delay.

Researchers again studied the students one month later and eight months later before the change of time started. After the start time changed, the students reported better sleep, less melancholic symptoms, and more likely to be awake. More importantly, most students, teachers, and parents support program changes after experiments.

This seems to be not surprising given the similar finding that western sleep researchers are important for adolescent sleep for many years. For example, the American Academy of Pediatrics says that in order to adhere more to "youth's physiological sleep rhythm that the sleep-wake cycle begins to shift two hours after the beginning of puberty", the school will start after 8:30 AM It is recommended.

However, due to cultural differences, current research is important. Researchers point out that many cultures in East Asia emphasize the importance of academic success. In particular, Singapore is leading the world with the International Student Assessment (PISA) ranking program that measures the academic performance of 15 year old students. However, Singaporean students also said that life satisfaction is low and anxiety is high.

Researchers pointed out that "constant effort" in academic success leads to poor sleeping habits, so that students may not sleep more than the recommended daily 8 to 10 hours. They also assume that this driver only starts late at night, so this driver may bring short term benefits to the beginning of the delay. But nine months later, the students reported that the grace of this grade continues.

"The results of these studies show that even in East Asia many students reduce sleep while following their academic performance and show student's life satisfaction the lowest in the world. Is feasible and leads to continuous improvement of students happiness, "researchers wrote.

Nonetheless, supporters stated that some studies show that the benefits of late school outweigh the disadvantage. In 1996, the start time of the high school in Edina, Minnesota was changed from 7:20 am to 8:30 am. With this change, the attendance rate has improved, the lag has been shortened, less attending school nurses led by Kyla Wahlstrom, Director of Applied Research and Education Improvement Center, University of Minnesota, attention increased, attention improved, depression Will be further reduced. . Wahlstrom also said that by the end of the first year 92% of Edina's parents prefer late start

"Is it necessary to start school education in the future?" Is a controversial issue, and some schools decided to change the start time to 8:00 am and 8:30 am. People who choose to go to school think that in the morning lessons, for example, less learning of academics and concepts will help young people to take a natural sleep. In these schools, the school's performance was also greatly improved because young people who were completely absented improved memory, reaction time, mood, and athletic ability. This change is expected to reduce health related problems related to sleep deprivation and traffic accidents caused by student participation. In the column on school enrollment time of the New York Times in 2008, the score also rises when the school in Jessein County, Kentucky State changes the school's enrollment time from 7:40 am to 8:40 am. "