夏说英语新闻晨读 第459期:睡前喝牛奶到底能不能帮助睡眠?(在线收听) |
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. |
原文地址:http://www.tingroom.com/lesson/xsyyxwcd/463502.html |