Your melatonin (master hormone) and steroid levels are being affected, you are just innured - don't really notice a difference. Similarly, studies have shown t

Your melatonin (master hormone) and steroid levels are being affected, you are just innured - don't really notice a difference. Similarly, studies have shown that those who think they've completely adapted to noise at night in high traffic areas, say, are actually being harmed. Remember, these effects are comparable to jet-lag and spread out over weeks, they aren't simply immediate effects.