Supposedly warm milk contains melatonin and trytophan and so helps induce sleep, but in fact, a glass of milk doesn't contain enough to have any effect. But it's still a soothing drink.

都说热牛奶里含有褪黑素有助睡眠，其实一杯牛奶里的有效成分少的可怜，基本上不起作用，但它多少还是有舒缓的作用。

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Supposedly warm milk contains melatonin and trytophan and so helps induce sleep, but in fact, a glass of milk doesn't contain enough to have any effect. But it's still a soothing drink.

都说热牛奶里含有褪黑素有助睡眠，其实一杯牛奶里的有效成分少的可怜，基本上不起作用，但它多少还是有舒缓的作用。

youdao