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Health

Sleeping woman

Light is of great importance for our bodies, for it controls our inner clock and thus the biological rhythms which control sleep, heart rate, body temperature, hormon levels and countless other body functions.

Light also influences our psyche. Many people know about winter depression (SAD), which is most efficiently treated with bright light, not with chemical drugs. Too much light at night, on the other hand, can cause seep disorders and interfere with our inner clock.

Never before have people had access to light in such quantity and variety, but darkness is getting scarce. In Germany, there is no place left with natural darkness. The number of people who feel annoyed by artificial light and even complain about problems with sleep is growning.

Using light indoors has become a challenge many people don't feel up to. Buying a light bulb today is not only a question of light intensity, but is linked to decisions about the type of light source: energy saving lamp, halogen lamp, LED, cold-white or warm-white, all these parameters influence our body in different ways.

No matter if you are in a hospital or nursery home, light at night is needed for the nursing staff to do their work and stay awake. But does it influence the patient if the lights are switched on in the middle of the night or if the corridor lights illumniate the patient's rooms?

Studies show that artifical light at night can interfere with sleep and health, especially in old people and those suffering from dementia. Smart lighting can increase sleep quality and reduce work for the nursing staff.

Last but not least, we have to consider the health of the nursing staff as well. Night shifts in nursing service are inevitable. Night shifts and shift rotation put a strain on the body. Using the right light at home and on work can help increase life quality in shift workers.

Blogposts about this topic

Is a 4000 Kelvin LED street light like the moon?

Night mode for LED displays - does it really work?

Losing control - gaining control: Hannah Ahlheim talks about sleep research

German blogposts about this topic

Der frühe Schüler verschläft den Wurm

Keine dunklen Nächte im Urlaub

Wenn blaues Licht uns nicht schlafen läßt

Photo: Sleeping woman #48289144 © Africa Studio - Fotolia.com