#donguosis

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jun-won

9y

Why I get so much sleep in winter"donguosis"

Why I get so much sleep in winter"donguosis"

Symptoms of donguosis often lead to sleepiness and lethargy. The reason why you see this in winter is related to the amount of sunlight. Our body uses sunlight to synthesize a ceratonine, which is called

$ 0.000

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