Background By affecting the internal timing mechanisms of the brain, light regulates human
physiology and behavior, perhaps most notably the sleep–wake cycle. Humans spend over …

Study Objective: This research examined the impact of daylight exposure on the health of
office workers from the perspective of subjective well-being and sleep quality as well as …

A field study was conducted at two US federal government office sites and two US
embassies to demonstrate whether circadian-effective lighting (providing circadian stimulus …

As the primary environmental cue for the body's master biological clock, light–dark patterns
are key for circadian alignment and are ultimately fundamental to multiple dimensions of …

Night work is associated with increased sleepiness and disturbed sleep. Maladaptation of
the circadian system, which is phase‐adjusted to day time work and thus promotes …

Rotating-shift workers, particularly those working at night, are likely to experience
sleepiness, decreased productivity, and impaired safety while on the job. Light at night has …

The use of electronic devices with light-emitting screens has increased exponentially in the
last decade. As a result, humans are almost continuously exposed to unintentional artificial …

The circadian rhythms of shift workers do not usually phase shift to adapt to working at night
and sleeping during the day. This misalignment results in a multitude of negative symptoms …

Many of the health and safety problems reported by shift workers result from the chronic
sleep deprivation associated with shorter, fragmented daytime sleep. This reduction in the …

Objectives Circadian regulation of human physiology and behavior (eg, body temperature or
sleep-timing), depends on the" zeitgeber" light that synchronizes them to the 24-hour day …