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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 napafter eating a large Thanks giving meal.
Turkey contains a lot of tryptophan.
When ingested,tryptophan releases serotonin (happiness chemicals)and melatonin 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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