Can working a permanent night shift ruin your health?

Im getting a security job where I will be all alone in a wearhouse for 12hrs. a day from 8pm to 8am. 5 days a week..I wanna know how this is going to afect me on my days off and my body (because I work out) and I hear that your muscles grow when u sleep. And in the summer can I sleep out side in a lawn chair or do... show more Im getting a security job where I will be all alone in a wearhouse for 12hrs. a day from 8pm to 8am. 5 days a week..I wanna know how this is going to afect me on my days off and my body (because I work out) and I hear that your muscles grow when u sleep. And in the summer can I sleep out side in a lawn chair or do I have to have complete darkness when I sleep?. And if I go on vacation how will I function?..the whole Idea of it weirds me out but Its a easy job that pays good, so in this economy i cant pass it up. so tell me what u think.
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