It's because of the intensity of the light. Conditions of both unusual brightness or darkness increase the body's use of vitamin A. Polar bears store so much vitamin A in their livers that it's dangerously poisonous to eat. I dont remember the toxic levels but they're well above general requirements, because A's fat soluble the liver can store quite large amounts so for a normal life style I reckon a pound of pig's liver a month is plenty. It's a long time ago that I looked into these things so you might want to check if you're planning more than half a pound a day.
(Cacher) Vous en avez marre de placer les bateaux ou les pièces d'Espionnage en début de partie? Vous pouvez aller sur l'Editeur de parties et sauvegarder quelques unes de vos positions préférées pour une utilisation future. (pauloaguia) (Montrer toutes les astuces)