On Friday, 1 May 2015 11:11:52 UTC+1, Rod Speed wrote:
"Dave Plowman (News)" wrote in message
...
In article ,
EricP wrote:
We are LED converted at home and very pleased with them but the place
my wife works have just replaced all their bulbs with Daylight LEDs

Immediately everyone working there has got terrible headaches that
last about twenty four hours. The whole staff from managers down.

Anyone get any ideas about this.

Probably flicker - too fast to be noticeable.
Although I'm surprised it's effected everyone.

Yeah, bet that isn't anything physical.

Can't think of the word for it, groupthink isn't quite right.

Theer was a item on the TV a while ago where they tested the taste of red wine under difernt lighting conditions (they did the same with food).
They found that under red light people stated that the red wine tasted better, when under red light the same happened with red meat

http://www.telegraph.co.uk/news/scie...lit-rooms.html

Another test showed that people drank more and for longer under blue light, which was a suprise and most believed that red light made you feel hottoer so would therefor make you drink more, but what they fouhnd was that blue light kept you awake longer giving you more time to drink. This was done in a bar they hired out and on cetain nights they lit the place with differnt colours.