Effects of School Schedule Transition on Sleep-Wake Cycle of Brazilian Adolescents

نویسنده

  • Luciana Mello
چکیده

Researchers have long been concerned with students’ sleep. In 1913, Terman and Hocking (1) had already raised a number of questions on the subject, namely: "What is the optimum amount of sleep for physicvels (measured by MSLT) in adolescents during a summer holiday camping. Golub has recently (2) found a delay in sleep-wake cycle (SWC) concurrent with the sexual development of Rhesus monkeys (Macaca mulata), and Tate & Richardson (3) have found the same association in a diurnal rodent (Octogon degu). Although these findings strongly suggest that the neuroendocrine system might act upon SWC regulation, the mechanisms involved in this process have not been well identified yet.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Sleep–Wake Cycle in Rural Populations

The light/dark cycle is the main zeitgeber acting on the mammalian circadian system; nevertheless, distinct environments, such as those with and without electricity may provoke important resetting effects on the clock. The aim of this study was to describe sleep/wake patterns of adolescents living in two Brazilian rural regions. In the first population, 120 adolescents participated in the study...

متن کامل

Sleep-wake pattern of medical students: early versus late class starting time.

The sleep-wake cycle of students is characterized by delayed onset, partial sleep deprivation and poor sleep quality. Like other circadian rhythms, the sleep-wake cycle is influenced by endogenous and environmental factors. The aim of the present study was to determine the effects of different class starting times on the sleep-wake pattern of 27 medical students. The data were collected during ...

متن کامل

Shiftworking families: parents' working schedule and sleep patterns of adolescents attending school in two shifts.

OBJECTIVE To explore whether parents' engagement in shift work affects the sleep habits of their adolescent children who attend school in two shifts. METHODS The data were drawn from an extensive survey of sleep and daytime functioning of adolescents attending school one week in the morning and the other in the afternoon. The participants were 1,386 elementary and high school students (11-18 ...

متن کامل

Estimating dim light melatonin onset (DLMO) phase in adolescents using summer or school-year sleep/wake schedules.

STUDY OBJECTIVES This analysis examined associations between the salivary dim light melatonin onset (DLMO) phase and self-selected sleep/ wake schedules in groups of children and adolescents during summer vacation and during the school year to determine the degree to which sleep/wake patterns can estimate salivary DLMO phase. DESIGN AND SETTING Participants slept at home on self-selected sche...

متن کامل

Morningness-eveningness and sleep patterns of adolescents attending school in two rotating shifts.

School system in which classes are scheduled 1 week in the morning and the other in the afternoon, and in which students rotate schedule every week, fosters sleep irregularity. In this study, we examined morningness-eveningness of adolescents who were involved in such schedule of school time and explored relationship between their circadian preferences and sleep characteristics. A large sample ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001