Article #1
http://www.sciencedaily.com/releases/2008/12/081215074351.htm

http://www.google.hn/imgres?imgurl=http://news.discovery.com/human/2010/06/09/sleepy-teen-278x225.jpg&imgrefurl=http://news.discovery.com/human/teens-school-start-times.html&usg=__AkiPEj1SfLXMQAmXHy0HGsW2jYw=&h=225&w=278&sz=27&hl=es&start=0&zoom=1&tbnid=MsQeuHFboSv9DM:&tbnh=123&tbnw=155&prev=/images%3Fq%3Dearly%2Bschool%2Bstart%26um%3D1%26hl%3Des%26rlz%3D1T4ADBF_esHN310HN310%26biw%3D1003%26bih%3D519%26tbs%3Disch:1&um=1&itbs=1&iact=hc&vpx=664&vpy=114&dur=2823&hovh=180&hovw=222&tx=99&ty=202&ei=xR_XTMOYBMWclgfo_7yCCQ&oei=xR_XTMOYBMWclgfo_7yCCQ&esq=1&page=1&ndsp=15&ved=1t:429,r:8,s:0

Study conducted by senior author Barbara Phillips, MD, director of the UK Healthcare Good Samaritan Sleep Center in Lexington, Ky.
A survey concerning the sleep habits of students was made after a change in school start times. In 1998 students filled out the first survey concerning their sleep habits in school nights and non-school nights. In 1999, students filled out the same survey. During year one, school times were during 7:30 to 8:00 and in the second year school times were during 8:30 to 9.
Their results were that because of the change in school start times, enabled students to get more sleep which decreased young teenagers auto accidents.
In my opinion this study is relevant because it demonstrates social pressure as well as school pressure give adolescents an inadequate and little amount of time of sleeping which cause big problems such as car accidents.

Article #2
http://www.sciencedaily.com/releases/2009/06/090609072813.htm


http://www.google.hn/imgres?imgurl=http://www.spokesmanreview.com/blogs/vox/media/all-nighter-main_Full.jpg&imgrefurl=http://www.spokesman.com/blogs/vox/2007/dec/18/duh-of-the-week-study-all-nighters-hurt-students-grades/&usg=__jsQSSicqIQc5KCnWW7mn9MAo5ZQ=&h=400&w=600&sz=33&hl=es&start=15&zoom=1&tbnid=EVmY3tOZ8DurJM:&tbnh=104&tbnw=127&prev=/images%3Fq%3Dnight%2Bstudying%26um%3D1%26hl%3Des%26rlz%3D1T4ADBF_esHN310HN310%26biw%3D1003%26bih%3D519%26tbs%3Disch:10%2C88&um=1&itbs=1&iact=hc&vpx=384&vpy=273&dur=4477&hovh=183&hovw=275&tx=148&ty=137&ei=xyXXTLf8HcL98AbVrPHOCw&oei=WCXXTJ-sD4SClAexk5z5Ag&esq=2&page=2&ndsp=18&ved=1t:429,r:2,s:15&biw=1003&bih=519

Lead author Jennifer Peszka, PhD, psychology department chair at Hendrix College in Conway, Ark.,
The study detected that students experience lack of sleep hygiene during their change from high school to college. It was based on data from 89 students with ages between 17 and 20 which were beginning their freshmen year and 34 of the students who were finishing their freshamn year in an arts college. The study states which were the negative effects in poor sleep which affected educated high school and college students.
They found a decline in the grade point average of students during the transition from high school to college. Results indicate that evening types had significantly lower first year college GPA (2.84) than morning and intermediate types (3.18). The evening type students had a greater lowering of their GPA in their transition from high school to college in concerning of the rest of their peers.
In my opinion, this study can make any teenager realize how sleeping issues really afect our grades and even though we got a lot to do for homework every night, we shouldn´t stay up that late doing our work because its really making it worst.

Article #3
http://www.sciencedaily.com/releases/2007/03/070308121912.htm

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The study was reported by Antoine Viola, Derk-Jan Dijk, and colleagues at the University of Surrey's Sleep Research Center.
The study was used to compare how individuals that hade only the longer gene variant and those that had only the shorter one struggled on keeping themselves awake for 2 days, including the intervening night. The researchers found that although some individuals struggled to stay awake, others did not have any difficulty doing it.
The results came out very early in the morning, between 4 to 8 in the morning and justified that individuals with the larger variant of the gene had very poor results on tests for attention and working memories.
In my opinion, this study is helpful for someone who has or think that they might have a sleeping disorder
and want to know the cause of it but it also interests people to find out what gene of sleeping do they have according to the amount of sleeping they´ve been getting in their lives.