1 sentence

1. 长期熬夜会打乱人体的生物钟，对健康不利。

   cháng​qī áo​yè huì dǎ​luàn rén​tǐ de shēng​wù zhōng, duì jiàn​kāng bù​lì.

   Staying up late for long periods will disrupt the body's biological clock and harm health.

   Source: Dong Chinese Dictionary