The non-visual effects of light have become a hot topic in the study of how lighting
environments affect humans. For an extended time, living and working in an isolated …

Light is a potent circadian entraining agent. For many people, daily light exposure is
fundamentally dysregulated with reduced light during the day and increased light into the …

Lifestyle choices, external environment, aging, and other factors influence the synthesis of
melatonin. Although the physiological functions of melatonin have been widely studied in …

Dynamic lighting is a potentially promising solution to meet the individual's chronobiologic
and psychological needs at specific times of day or for specific activities. Yet, few studies …

Nowadays lighting projects often include temporal variations of the light, both spectrally and
in terms of intensity to consider non-visual effects of light on people. However, as of today …

Exposure to the space environment induces a number of pathophysiological outcomes in
astronauts, including bone demineralization, sleep disorders, circadian clock dysregulation …

In this field study, we tested the effects of dynamic light scenarios and personal illuminance
on visual experience, sleepiness, cognitive performance and sleep in an operational office …

Objective Sleep varies between individuals in response to sleep-wake history and various
environmental factors, including light and noise. Here we report on the intranight variation of …

Light use is rising steeply, mainly because of the advent of light-emitting diode (LED)
devices. LEDs are frequently blue-enriched light sources and may have different impacts on …

Occupants' interaction with building systems, and more generally occupants' behaviour, is
strongly related to human perception of the surroundings. Progresses in human comfort …