The study was conducted by Barbara Phillips, MD, director of the UK Healthcare Good Samaritan Sleep Center in Lexington, Ky. The study was developed making two surveys, the second one two years later of the first one. School times during the first year were 7:30 a.m. for high schools and 8 a.m. for middle schools. In the second one high schools and middle schools started one hour later at 8:30 a.m. and 9 a.m. The results when school started one hour later was that students had from 12 to 30 minutes more self-reported nightly sleep. The percentage of students who got at least eight hours of sleep per weeknight increased significantly from 35.7 percent to 50 percent. Students who got at least nine hours of sleep also increased from 6.3 percent to 10.8 percent. I personally prefer to start school earlier for having an earlier dismissal, but it is true that starting one hour later will allow me to sleep more.
Judith A. Owens, M.D., M.P.H., of the Hasbro Children's Hospital, Providence, and colleagues was responsible for conducting thsi study. She studied 201 students in grades 9 through 12 attending high school in Rhode Island. For the purposes of the study, class start time was procrastinated from 8 a.m. to 8:30 a.m. Also, students were required to complete the online retrospective Sleep Habits Survey before and after the change in school start time. Students reported more satisfaction with sleep and experienced improved motivation. Daytime sleepiness, fatigue and depressed mood were all reduced, the percentage of students getting less than seven hours of sleep decreased by 79.4 percent, and those reporting at least eight hours of sleep increased from 16.4 percent to 54.7 percent. I personally like to be satisfied with my sleep and also things are done better with motivation, so I like this study because it suggests school directives a simple way of havin happier students.
The study was conducted by Antoine Viola, Derk-Jan Dijk, and colleagues at the University of Surrey's Sleep Research Center. In the study scientist and psychologists compared how individuals possessing only the longer gene variant and those possessing only the shorter one coped with being kept awake for two days, including the intervening night. Researches found that a genetic difference in gene in period 3, makes some people particularly sensitive to the effects of sleep deprivation. The results were shown mostly between 4 and 8 a.m., during which individuals with the longer variant of the gene performed very poorly on tests for attention and working memory. I personally didnt know about this, its interesting and I hope they continue doing this type of works.
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