2 Using daylight
Added value for people and architecture
EPFL Rolex Learning Center, Lausanne l CH
Light is the elixir of life
Natural light is varied and creates a special atmosphere. Outdoor
illuminance can vary from 100,000 lux on a summer day to 5,000 lux
on a cloudy winter day. Directional sunlight and diffuse light from
the sky create dynamic lighting scenes, and the colour of this light
changes in a 24-hour cycle. Changing light colours and illuminance
levels influence the production of hormones in the human body. In
turn, these hormones stabilise the circadian sleep-wake rhythm and
help to stimulate us, make us feel at ease and help us keep track of
time – scientific findings suggest that the effects of hormones are
even stronger than social factors such as working hours and meal-
times.
Hotel Budersand Golf & Spa, Sylt | DE
