Sleep is an essential component of overall human health but is so tightly regulated that
when disrupted can cause or worsen certain ailments. An important part of this process is …

Artificial lighting is omnipresent in contemporary society with disruptive consequences for
human sleep and circadian rhythms because of overexposure to light, particularly in the …

Before the invention of electric lighting, humans were primarily exposed to intense (> 300
lux) or dim (< 30 lux) environmental light—stimuli at extreme ends of the circadian system's …

Daylight stems solely from direct, scattered and reflected sunlight, and undergoes dynamic
changes in irradiance and spectral power composition due to latitude, time of day, time of …

The regular rise and fall of the sun resulted in the development of 24-h rhythms in virtually all
organisms. In an evolutionary heartbeat, humans have taken control of their light …

The onset of melatonin secretion, the dim light melatonin onset (DLMO), is a tool for
determining the phase of the circadian timing system. Although small studies have …

Abstract Study Objectives Blue-depleted lighting reduces the disruptive effects of evening
artificial light on the circadian system in laboratory experiments, but this has not yet been …

Disturbances of the sleep-wake cycle are highly prevalent and diverse. The aetiology of
some sleep disorders, such as circadian rhythm sleep-wake disorders, is understood at the …

Abstract This White Paper presents the results from a workshop cosponsored by the Sleep
Research Society (SRS) and the Society for Research on Biological Rhythms (SRBR) …

Sleep and the circadian clock are intertwined and have persisted throughout history. The
suprachiasmatic nucleus (SCN) orchestrates sleep by controlling circadian (Process C) and …