UNIT 1. IT’S YOUR LIFE » Стр.32 (7)

1. People sleep lightly during stages 1 and 2. 2. Sleep is much deeper during stages 3 and 4. 3. People breathe faster during stage 5. 4. During stage 5 eyes move very fast. 5. They are terrible dreams. 6. It is not advisable to drink tea, coffee or coca-cola, one shouldn’t eat much food, chocolate, or practice sports.