Reading Passage 2 has four paragraphs, A-D. Which paragraph contains what information? Choose the correct letter, A-D,

True sleep lasts approximately ..................... .

Pythons need:

If we continually lack sleep, the specific part of our brain that controls language is ........................... .

Although during REM sleep our breathing rate and blood pressure rise, our bodies 

The brain activity is really high:

There are four stages of the REM sleep

After four sleepless days, Randy had a delusion about him being a football celebrity. 

During the Light Sleep stage:

Humans require at least: