Wearable sleep-tracking technology is of growing use in the sleep and circadian fields,
including for applications across other disciplines, inclusive of a variety of disease states …

Architectural lighting has potent biological effects but applied lighting practices that
capitalize on this potential have been limited. In this review, we endeavor to consolidate and …

The cortisol awakening response (CAR), the marked increase in cortisol secretion over the
first 30–45 min after morning awakening, has been related to a wide range of psychosocial …

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 …

Consideration is being given to the adoption of a new metric characterizing light as it affects
the human circadian system. Much has been learned over the past couple of decades about …

Exposure to light from self-luminous displays may be linked to increased risk for sleep
disorders because these devices emit optical radiation at short wavelengths, close to the …

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 …

Most teenagers are chronically sleep deprived. One strategy proposed to lengthen
adolescent sleep is to delay secondary school start times. This would allow students to wake …

Background Light therapy has shown great promise as a nonpharmacological method to
improve symptoms associated with Alzheimer's disease and related dementias (ADRD), with …

After decades of investigation, the role of near work in myopia remains unresolved, with
some studies reporting no relationship and others finding the opposite. This systematic …