Then, at the beginning of the cycle, body cells prefer to metabolise carbohydrates.

然后，在周期的开始，身体细胞更喜欢代谢碳水化合物。

Narcolepsy is a chronic neurological disorder that causes a person to have sudden attacks of sleep, affecting their brain's ability to control the body's sleep-wake cycles.

发作性睡病是一种慢性神经系统疾病， 会导致人突然入睡，影响大脑控制身体睡眠-觉醒周期的能力。