B篇快速阅读: What can we learn about endorphins and Internet addicts from the text?
A.
Endorphins are the essential brain chemicals that cause Internet addiction.
B.
Endorphins may be released continuously and for a long time in the brains of Internet addicts.
C.
Endorphins can encourage Internet addicts to talk and spend time with their family and friends.
D.
Endorphins can provide useful, real-life awards, which can help prevent Internet addiction.