What are the bad effects of social networking sites(such as Facebook, twitter,etc.) to our health?

[lilypool]

When we tend to face the computer every time, we fail to socialize with the real people in the real world. Sometimes, we become lazy to go out and see the beautiful wonders of our world because what we focus on is the internet. Too much web surfing and social networking may lead to lower work productivity and less social interaction with family and friends.