Quiz · Sleep and Your Mind

Question 1What is the speaker mainly trying to explain in this talk?

How to work harder when you feel very tired Why phones are bad for your eyes at night Why sleep matters and how to sleep better How the brain works when we are awake

Question 2How much sleep do most adults need each night?

About eight hours of sleep each night About six hours of sleep each night About five hours of sleep each night About ten hours of sleep each night

Question 3What happens to our memories while we sleep?

The brain forgets the day's memories completely. The brain makes new memories from old dreams. The brain stops working until the morning comes. The brain sorts the memories from the day.