Safety versus sleep – a conflict and an evaluation
„We need brightly lit streets to protect women from rape!” Really? Seriously?!? I’ve reached the point where I get angry – and I have some good arguments why we do …
Light and sleep – or why we (usually) sleep at night
Sleep usually happens at night. For our ancestors, there were very practical reasons for this. Artificial light was expensive, high maintenance, and not without danger. Also, it was too dim …
Nature- and neighbour-friendly Christmas lights
It’s that time of year again. The days are getting darker and shorter. The moods are getting heavier. But there is a light at the end of the tunnel – …
Night mode for LED displays – does it really work?
In today’s world, LED displays are omnipresent. We use them for computers, smart phones, e-book readers and television. And we use all these appliances until late at night, often …
Losing control – gaining control: Hannah Ahlheim talks about sleep research
Sleep is an important topic these days. How many hours of sleep do we need, at which time of the night, and in what position? Some people are boasting about …
No dark nights at the hotel
The basic idea how to spent our evenings during our first family holiday was inviting. We would take the kids to bed and then settle down on our private …