: You can find the full digital version of the textbook and additional audio materials on the official Lingvo Adu portal.

In the 9th-grade English textbook by , Exercise 3 on page 71 falls within Unit 3: A Healthy Lifestyle . This specific exercise focuses on reading and translating a text about the importance of sleep and its impact on teenagers' health and academic performance. Exercise 3, Page 71: Translation and Summary

The text typically explores the biological "body clock" and why teenagers often struggle to get enough rest. Below is a breakdown of the key points and a translation guide to help you master the material. Key Vocabulary from the Text — Биологические часы

: Experts suggest maintaining a regular sleep schedule and avoiding screens (phones/TV) before bed.

: Many teenagers find it hard to go to bed early because their biological clocks shift during puberty, making them feel more awake late at night.