每日口說挑戰 睡覺好像很重要？不過我們到底為什麼要睡覺？ (Why Do We Have To Sleep?)

今日挑戰句子

A special region in the center of our brain acts as our master biological clock. Light sensitive cells in our retinas feed signals deep into that brain region, training neurons to sync up with Earth’s 24 hour cycle of day and night.

在我們的大腦中有一個精準的、像是生物時鐘一樣的特別區域，視網膜上的光敏細胞會將信號送至這個區域，讓神經元能和地球上24小時的日夜循環同步。