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shaley | 19:57 Wed 02nd Jan 2008 | Quizzes & Puzzles
4 Answers
Which colour wavelengths of the electromagnetic spectrum have been discovered to be most effective in lifting mood and increasing productivity?

any help please ?
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I believe it's ultraviolet, a.k.a. sunlight
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well the answer is red ,yellow, or blue.. I was thinking blue but I am really not sure... Thanks
All the info I could find on mood-lifting, seems to refer to blue light.
Question Author
thanks Julieag .... blue it is

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