Про сон

Вообще я собираюсь почитать нашумевшую тут книжку, Nurture shock. Но пока читала только выдержки, и часть про сон, мне кажется, требует особого внимание. Далее по английски - просто фактическая информация  

• 60% of high schoolers report extreme daytime sleepiness
• High school seniors average 6.5 hours per night. Only 5% average 8 hours.
• Children of all ages consistently get 1 hour less per night than 30 years ago
• Because children's brains are still developing, lost sleep has a much bigger impact than on adults
• The performance gap associated with 1 hour of lost sleep is greater than the gap between the average 4th grader and 6th grader
• In a U. Minnesota study, A students averaged 15 minutes more sleep per night than B students, who averaged 15 minutes more than C students, and so on.
• During sleep, the brain shifts what it learned that day to more efficient storage regions of the brain. The more you learned during the day, the more you need to sleep that night.
• Children spend 40% of their sleep time in slow-wave sleep (10X what adults spend)
• Negative stimuli get processed by the amygdala; positive by the hippocampus. Sleep deprivation hits the hippocampus harder than the amygdala, so sleep-deprived people fail to recall pleasant memories, but recall gloomy ones just fine.
  • Sleep-deprived college students could remember 81% of negative words like "cancer," but only 31% of positive ones like "sunshine."
• Adolescent brains take 90 minutes longer to produce melatonin than children and adults, hence their tendency to late nights and sluggish mornings
• When Edina, MN changed high school start times from 7:25 AM to 8:30 AM, the following happened
  • The top 10% of students averaged 683/605 on the SAT before the change, and 739/761 after the change
  • Students also reported higher levels of motivation and lower levels of depression
  • A similar change in Lexington, KY reduced teenage car accidents 25%
• Sleep loss may be the cause of the rise in childhood obesity
  • Increases ghrelin, which stimulates hunger
  • Decreases leptin, which suppresses appetite
  • Elevates cortisol, which stimulates fat production
  • Reduces HGH
  • Children who sleep less are fatter (300% in one Japanese study)
• The odds of obesity rise 80% for each hour of lost sleep
• Adults who only slept 6 hours per night for two weeks felt fine, but performed on tests as if they'd stayed awake for 24 hours straight