What time should school start? School start times vary but most schools usually start before 8 a.m.

Adolescents of this generation face a global chronic health problem: sleep deprivation. Researches show that getting enough sleep is a necessity in having a good health, essential as to eating and exercising. Adolescents are among those who sleep less than the number of hours, with a range of 8.5 hours to 9.5 hours per night, needed to perform well and have health and brain development. 

Studies show that starting school early, may result to fewer hours of sleep. After school activities' schedule like sports, take home assignments from school, family obligations and other societal line ups would affect students' sleeping habits that won't allow them to obtain quality of sleep. In addition, due to consequences of puberty, changes in the natural sleep cycle and an increase in the amount needed of sleep would make it difficult for such adjustments. As a result, when it is time to wake up for school, the body says "hey, you still lack sleep, you need to rest."

Teens spend more time in school; however they weren't able to maximize these learning, since sleep deprivation prevents them to stay active, cope up with stress, and attain information. Adolescents who lack sleep have a higher risk for behavioral problems such as depression, prone to vices like drugs, health complaints, and lower academic or even athletic performance. Thus, lack of sleep can interfere with learning. Less sleep is associated with a decrease in performance.

Several studies have found that schools who start at 9 a.m. or even later, have students who perform significantly better than schools who start before 9 a.m. In solution, organizations and schools may take into consideration starting at 9 a.m. or later to ensure the overall health, learning and performance of students or at least take steps in lessening cases of sleep deprivation.