Question

why we sleep only in night​

Answer 1

Exposure to light can make it difficult to fall asleep and return to sleep when awakened. Night shift workers often have trouble falling asleep when they go to bed, and also have trouble staying awake at work because their natural circadian rhythm and sleep-wake cycle is disrupted.

Answer 2

Answer:

As day turns to night , our brain makes a chemical called melatonin that makes us sleep. Because light can wake up you , you should sleep in dark . Even the light of tv and computer can make us sleep due to their rays .

That’s it .

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