The central idea of the passage is that too much time on the Internet can negatively affect the health of teenagers. Which two details support this central idea?

Fifteen-year-old Meredith Mikulski has always been strangely reluctant to leave her room. All she wants to do is stay in there and chat with her Internet friends. Her parents didn’t think much of it until she started to skip dinner with family and even refused to go to school. Around the country, teenagers are starting to log into virtual life and log out of real life. And with every post they make to their favorite social media site, they may be opening themselves to all kinds of mental problems. Dr. Delinah Hurwitz, a professor of psychology, suggests that spending time on the Internet is a kind of addiction. She found that people became hooked because endorphins, a chemical produced by the body, act like a drug that rushes through the person’s brain and body every time they receive a response to a post.