Вопрос:

Most teens need about 8 to 9 hours of sleep each night. This is necessary for anyone who wants to do well in exams or play sport and not feel exhausted afterwards. However, many teens usually go to bed late. This may be because the hormone that regulates sleep appears later at night during a young person's teenage years.

Ответ:

This paragraph explains that teenagers require 8 to 9 hours of sleep nightly for optimal performance in academics and sports. It also points out that many teens go to bed late, possibly due to a sleep-regulating hormone that is released later during adolescence.

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