Zombies How Do They Work

They are menacing, sickening, and freighting. You see them on TV and in the movies. They moan and groan and try to feed on your flesh. They are zombies. Question is, how do they work?
To start off you should probably want to know what a zombie is, assuming you don't. A zombie is a dead body that still carries some function that allows it to move. In layman' terms, it is basically saying that once a person is dead they get infected and are still able to move. This zombie like effect will last until the brain is dead. A zombie may even be decapitated and still work, only when the brain is destroyed does the zombie officially die.
Zombies have a bunch of nicknames like lurkers, walkers, creepers, roamers and more. All of them mean the same