1. Why good sleep is so important for people?
2. How much time should a teenager sleep?
3. What we should avoid to sleep better?
4. What can affect your immune system and how?​

сейчас все ответим.

Объяснение:

1. It is needed so that a person is always not exhausted and does not get tired often.

2.To get the most benefit from your sleep, it is important to monitor its quality and duration. It is recommended to sleep at least 7-8 hours a day and create comfortable conditions for this.

3. You should not eat foods that can make a person unable to sleep.

4. Lack of sleep is also evident in the appearance: dark color under the eyes, gray, earthy color of the face - without a little sleep. In addition, lack of sleep can lead to poorer functioning and also an increase in the amount of cortisol in the blood, thereby weakening the immune system.