An international t sleep study conducted by Boston College in more than 50 countries, found that 57% of secondary student needed more sleep.[i] The most sleep-deprived students were in descending order: the US (73% sleep deprived), New Zealand, Saudi Arabia, Australia, Turkey, England, Childe, Ireland, and Finland. The researchers found that a correlation between higher test scores and getting more sleep, as well as good nutrition. A Stanford Medicine News article reported that sleep depravation among US teens is an epidemic and it can lead to anxiety, depression, and inability to concentrate.[ii] Citing a 2011 sleep poll that included diverse ethnic groups, high school senior sleep an average of 6.9 hours a night, down from an average of 8.4 hours in the sixth grade. A Gallup poll of average hours of sleep found 46% of young people ages 18 to 29 slept less than six hours and 51% felt they would feel better if they slept more. [iii] South Korean students are even more deprived, sleeping only 4.9 hours a night. (In a study of international sleep patterns of adult, the Chinese got the most sleep and the Japanese the least.[iv])
[i] Sean Coughlan, “Lack of Sleep Blights Pupils’ Education, BBC News, May 8, 2013.
[ii] Ruthann Richter, “Among Teens, Sleep Deprivation an Epidemic,” Stanford Medicine News Center, October 8, 2015.
[iii] by Jeffrey M. Jones, “In U.S., 40% Get Less Than Recommended Amount of Sleep, Gallup.com, December 19, 2013.
[iv] “How long is the Average Night’s Sleep Around the World?,” Huffington Post, August 24, 2013.