Background Light exposure is an important driver and modulator of human physiology,
behavior and overall health, including the biological clock, sleep-wake cycles, mood and …

The science and tools of measuring energy intake and output in humans have rapidly
advanced in the last decade. Engineered devices such as wearables and sensors, software …

For field research of non-visual effects of light, accurate measurement of personal light
exposure is required. A consensus framework for light-dosimetry could improve non-visual …

Beyond visual function, specialized light-sensitive retinal circuits involving the photopigment
melanopsin drive critical aspects of human physiology and behavior, including sleep–wake …

From smart work scheduling to optimal drug timing, there is enormous potential in translating
circadian rhythms research results for precision medicine in the real world. However, the …

Disrupted sleep is common among nursing home patients and is associated with cognitive
decline and reduced well-being. Sleep disruptions may in part be a result of insufficient …

Purpose To compare real‐world measures of illumination obtained with the Actiwatch‐2 and
Clouclip‐M2 with 'gold standard'photometry measures and to evaluate the ability of …

The purpose of this study was to compare two wearable sensors to each other and to a
questionnaire in an adult population. For one week, participants aged 29.2±5.5 years (n …

Environmental, social, and behavioral variables influence sleep timing and duration. Using
wrist-worn accelerometers, we recorded 31 dancers (age= 22.6±3.5) for 17 days and who …

Objective Sleep disturbances are common in pregnancy, and the prevalence increases
during the third trimester. The aim of the present study was to assess sleep patterns, sleep …