That depends on the person/zombie.
FOREVER
Well long story short, you dream about the dead, or do you mean the undead (i.e. zombies, skeletons etc.)?
There are unlimited zombies.
As people evolve, Zombies do to. Zombies are just people That are back from the dead.
Ryann Weller has: Played Various Zombies in "The Walking Dead: The Game - Season 1, Episode 4: Around Every Corner" in 2012. Played Various Zombies in "The Walking Dead: The Game - Season 1, Episode 1: A New Day" in 2012. Played Various Zombies in "The Walking Dead: The Game - Season 1, Episode 2: Starved for Help" in 2012. Played Various Zombies in "The Walking Dead: The Game -Season 1, Episode 3: Long Road Ahead" in 2012. Played Various Zombies in "The Walking Dead: The Game - Season 1, Episode 5: No Time Left" in 2012. Played Various zombies in "The Walking Dead: The Game - Season 2, Episode 1: All That Remains" in 2013. Played Various zombies in "The Walking Dead: The Game - Season 2, Episode 2: A House Divided" in 2014.
Zombies do not grow, they are dead; reanimated corpses.
Shawn of the dead, Dawn of the dead, Resident evil, and all the other movies out there about zombies are not real!
See, zombies are dead. Also be aware that dead people cannot talk.
Zombies are lifeless, they do not exist. But still they believe that zombies are dead bodies which come after its death, transforming it's self into a hideous creature!
Television shows that feature dead zombies have been around for decades. The most popular show currently is, The Walking Dead. There was also a television show called "Zombie" but it was not rated high enough to stay on the air.
Victor Chow has: Played Jack Leung in "Neighbours" in 1985. Played Zombies in "Dead Rising 2: Case 0" in 2010. Played Zombies in "Dead Rising 2" in 2010. Played Survivors in "Dead Rising 2: Case West" in 2010. Played Zombies in "Dead Rising 2: Off the Record" in 2011.
Umm zombies arent real..