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When sleeping, it is best to turn off all the lights, which is good for sleep.
There is nothing wrong with this, it all depends on personal habits.
Turning on the lights when you sleep will reduce melatonin secretion. In children, it may also cause precocious puberty.
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When it comes to turning on the lights at night, whether it is bright or dark, the easiest thing to think of is the impact on the biological clock. However, it seems that for babies, the effect of turning on the lights on their biological clock is not as obvious as we think. >>>More
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