Correlation vs Causation
Social isolation is not caused by Facebook - Facebook is the symptom of social isolation. Social isolation is caused by two main factors. 1) Law against drunk driving. One of the reasons alcohol is so popular is that it lubricates social interaction. When people cannot get together to drink, then people do not get together. 2) The endless fear mongering of the news, lawyers and governments. We are constantly bombarded with messages to not trust our fellow man. Parents do not allow their children out into the neighborhood to play and learn to interact with their community. Playing video games is all there is for them to do.
Facebook use and decline of happiness: The topic identifies correlation, not causation. It is highly likely that those using Facebook are looking to fill in something missing.
Screen time and weight gain: I read about a study that showed that video gamers on average are thinner than the general population on average.
People should get up and walk around.
Humanity's greatness is not in the memorization of facts. It is in the innovation of ideas based on available information. When we spend less time researching and memorizing facts, we have more time to be creative, and with more information readily available, we have more resources to be creative with. "... tweeting... Game of Thrones... might not remember everything..." 1) "might" shows there are no facts, just fear mongering. 2) Less clutter of the trivial in our minds leaves more room for the important. 3) The importance of entertainment is in the enjoyment of the art, not the proving we consumed it.
People have had ergonomics problems before computers. If the ergonomics of computers become true problems, lawyers will start suing, insurance companies will enforce standards, and we will be OK.
When a student spends 2 to 4 hours a day reading school books, does that not cause pressure on the neck? Or are they, as Luddite devices, exempt from causing human suffering?
One does need to be careful about loud sounds, but hearing reduction is not usually a cause of death.
Cyberchondria: All change involves chaos. People will learn to better filter the extreme access to information on the Web, and market forces will drive the innovation will lead to Web sites that better direct self-diagnosis.