Posts Tagged ‘stress’

Full-Spectrum Light (issue 41)

Thursday, September 29th, 2011

Around the world different people are talking about how they use full-spectrum lighting in their day-to-day lives. We feature some of the best here.



I’ve Got Sunshine on a Cloudy Day
So, this year I am testing out full spectrum light bulbs. They are supposed to provide light rays similar to those of the sun and are (supposedly) the best thing short of medication for treating seasonal depression. It’s like a little ball of sunshine in the corner of my office!

New fluorescent lamps awakens sleepy students

Wednesday, January 28th, 2009

Gasping teenagers can be helped by new fluorescent lamps in schools. When researchers changed lighting in classroom the students became more alert in the morning and got a better nightsleep.

Results are so good that other schools are getting interested in lighting in schools, says Arne Lowden. a researcher in a stress research institute in the Stockholm University.

In the darkest wintertime in two classrooms regular yellowish fluorescent lamps were changed to so called full spectrum fluorescent lamps. The classrooms were the students homeclassrooms so they had almost all their lessons there.

During the weeks of research was e.g. the melatonin level that controls sleep, measured. The levels become lower and the students were more alert. In the evening were the students more tired. When sleeping they didn´t move as much as earlier because their sleep was more effective. (more…)