可可電臺，每期節目一話題，讓英語磨練耳朵的同時學到更多有益的小知識，豐富知識的同時受益于生活。

Happiness hacks

快樂秘訣

Load up on leafy greens

多吃綠葉蔬菜

Dark, leafy greens such as spinach and kale are rich in folate, providing 33% of the recommended daily allowance (RDA).

深色綠葉蔬菜，如菠菜和甘藍富含葉酸，提供了每日推薦攝入量(RDA)的33%。

This nutrient is linked to a decrease in negative moods and depression because it helps produce dopamine in the brain.

這種營養與消極情緒和抑郁的減少有關，因為它有助于大腦產生多巴胺。

One 2012 study found that middle-aged people who consumed the most folate had a lower risk of depression symptoms than those who ate the least.

2012年的一項研究發現，攝入最多葉酸的中年人比攝入最少葉酸的中年人患抑郁癥的風險更低。

【知識點講解】

rich in 富有； 富含

例句：

This product is rich in herbal essence.

富含純凈的植物精華。

The beds, rich in organic material from which hydrocarbons originated, are called source beds.

富含能夠產生碳氫化合物的有機物質的地層叫做生油層。

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