What a lot of facebook users/video game addicted people, (especially males), lack. A social life may include, but is not limited to: Partying - shopping/chilling at the mall - generally just hanging out with friends/dating - going to a gym - having family gatherings - playing sports whether for a league or just traditionally - having hobbies besides sports such as yoga, playing cards.. etc.. A social life is something that can help solve the ever growing issue of facebook/videogame addiction that can turn one into a shut in that never leaves the house.
Facebook apps are so addicting, that's all I do now-uh-days besides work. I have no social life!!