Sleep timing is controlled by the subtle interplay between circadian and homeostatic
oscillators which, according to their endogenous properties, allow beings to feel …

The prevalence of diabetes and obesity is increasing at an alarming rate worldwide, and the
causes of this pandemic are not fully understood. Chronic sleep curtailment is a behavior …

Cortisol and inflammatory proteins are released into the blood in response to stressors and
chronic elevations of blood cortisol and inflammatory proteins may contribute to ongoing …

Background Chronic sleep debt is becoming increasingly common and affects millions of
people in more-developed countries. Sleep debt is currently believed to have no adverse …

Currently, in developed countries, nights are excessively illuminated (light at night), whereas
daytime is mainly spent indoors, and thus people are exposed to much lower light intensities …

The circadian pacemaker is differentially sensitive to the resetting effects of retinal light
exposure, depending upon the circadian phase at which the light exposure occurs …

Levels of numerous hormones vary across the day and night. Such fluctuations are not only
attributable to changes in sleep/wakefulness and other behaviors but also to a circadian …

During the past few decades, sleep curtailment has become a very common in industrialized
countries. This trend for shorter sleep duration has developed over the same time period as …

Sleep curtailment constitutes an increasingly common condition in industrialized societies
and is thought to affect mood and performance rather than physiological functions. There is …

Abstract Study Objectives: This study examined effects on adolescent sleep patterns,
sleepiness, and circadian phase of a school transition requiring an earlier start. Design and …