本期内容：

There's real science behind why many recommend warm milk before bed, and it has to do with chemicals inside the milk: melatonin and tryptophan. Tryptophan is known as the cause of wanting a nap after eating a large Thanksgiving meal. Turkey contains a lot of tryptophan. When ingested, tryptophan releases serotonin (happiness chemicals) and melatonin (sleep chemicals) in the brain. This is why you may see some individuals taking a melatonin supplement at night to aid with sleep.

(be) to do with: 与……有关
be related to: 与……有关
melatonin: n. 色氨酸
be known as: 以……著称
nap: n. 小睡
take a nap: 睡午觉；小睡一下
contain: vt. 包含
release: vt. 释放
serotonin: n. 血清素
individual: 补充物；补剂
aid with: 帮助

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