Task 2  Put these words into the spaces in the paragraph below. clock

getting

physical

adults

interest

light

main

daytime

Children need a lot more sleep than (9) . Pre-school children need 10 to 13 hours, pre-teens should get between nine and 12 hours, and teenagers should be (10) between eight and 10 hours a night. The researchers highlighted three (11) reasons how screens affect children's sleep. First, the (12) from screens upsets a child's body (13) . The light from screens getting into children's eyes before they sleep tricks their body into thinking it is still (14) . Second, children often watch videos of things that excite them or (15) them. This keeps their brain active, so they take longer to sleep. Finally, when children are watching screens, they are not exercising. Children need (16) activity to make them tired.
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