Why We Need Sleep - הבנת הנקרא | Psychometry Best

שאלה 1 מתוך 5

Why We Need Sleep

Every living animal needs sleep. A small bird sleeps for a few minutes at a time, while a lion can sleep for nearly 20 hours a day. Human beings usually need between seven and nine hours each night. Without sleep, we cannot think clearly or feel well. After only a few days without sleep, a person can become very sick.

During sleep, the body does not simply rest. Many important jobs happen while we are asleep. Our cells repair themselves, our bodies grow, and the brain cleans out waste that builds up during the day. The brain also uses sleep to store what we have learned. This is why students who sleep well often do better in exams than students who do not.

Children need more sleep than adults because they are still growing. A small baby may sleep for 16 hours a day. Teenagers usually need about nine hours, although many do not get enough sleep during the school week. Older adults often sleep less at night, but they may take short rests during the day.

Bright lights, loud noises and late meals can all make sleep difficult. Doctors say a regular schedule is one of the best ways to sleep well.

23. The main purpose of the text is to -

מורה AI

שלום! אני המורה הפרטי שלך לפסיכומטרי. איך אפשר לעזור?

איך תעדיף שהסביר לך?