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when toggle format what by license comment
Dec 18, 2013 at 16:46 comment added Code Whisperer Neat answer @Plynx
Mar 17, 2011 at 21:45 comment added cthulhu This, and lower the contrast too late at night. Your entire view is filled up with a light source, making your brain believe it's in the middle of the day. Before going to bed, your brain has to switch to 'Hey, it's night'-mode - dim the lights, get away from your computer, get some comfy warmth, etc. This triggers the production of a hormone (or something) that'll actually cause the symptoms of feeling sleepy. (I might be wrong on the last part, though).
Mar 16, 2011 at 20:04 history edited Plynx CC BY-SA 2.5
added 610 characters in body
Mar 16, 2011 at 19:58 history answered Plynx CC BY-SA 2.5