核桃含有褪黑激素——一种能调节昼夜周期节律的神经激素，能帮助你得到应对白天活动所需的休息。

Walnuts are rich in melatonin, a neurohormone which regulates the circadian rhythm of your sleep-wake cycle and helps you to get the rest you need to face the day.

youdao

核桃含有褪黑激素——一种能调节昼夜周期节律的神经激素，能帮助你得到应对白天活动所需的休息。

Walnuts are rich in melatonin, a neurohormone which regulates the circadian rhythm of your sleep-wake cycle and helps you to get the rest you need to face the day.

youdao