| > mental and physical health. It doesn't necessary. You could rephrase the title from > Lack of sunlight during the day is worse than [..] to > Lack of sunlight during the day has a larger effect on your bio rhythms then [..] but that effect isn't per-se bad it's bad if you life is out of sync with your bio rhythms to a point where it can have sever effects on you mental and physical health also additionally the way various factors can affect (mainly but not exclusively) shift our bio rhythms there is also the fact that people have various "dispositions" (not the right scientific term), dispositions which also change with age and which seem to have naturally evolved to improve the survival chances of human by making sure that in a pack of human (\j) there is always someone "fit" to spot danger/react fast/etc. the reason I'm pointing that "dispositions" out is because they can have a major affect on how likely (and more important how much) the bio rhythms of a person and their life with night shifts are out of sync as far as someone like me who doesn't know much about sleep science can tall the most harmful think is the switch between night and day shift making your bio rhythms fall completely out of sink (leading to fun thinks like potentially constantly increasing exhaustion every day) and/or the bio rhythms not adapting to night shifts worse as far as I can tell from personal experience there can be a big mismatch between what your bio rhythms are and what your "habits of sleep/work" are, especially if other factors like huge external stress come into play :\ Anyway examples of people living healthy lives with unusual bio rhythms (longer, shorter, shifted) are quite many. |