Natural lighting in the russian north-west

1. Natural lighting in the russian north-west shortens lifespan in rats (shorter mean (25%), maximum by 7 months).

   “Constant and North-West lighting involved premature aging, shorter mean (13.5 and 25%) and maximum life span (by 9 and 7 months, respectively)”

   Animalscompared with standard lightingfemales

   Lighting effect on spontaneous tumor development in female rats

   Voprosy onkologii·1 Jan 2007

1. Natural lighting in the russian north-west raises the risk of spontaneous tumors in rats.

   “and a significant increase in spontaneous tumor development rate as compared with standard lighting.”

   Animalscompared with standard lightingfemales

   Lighting effect on spontaneous tumor development in female rats

   Voprosy onkologii·1 Jan 2007

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