If you’ve spent any time watching movies, reading news stories about bath salts, enjoying AMC original programming, or farting around on Facebook, you’ve encountered the question about whether a zombie apocalypse could actually happen.
The Answer: Only a few months
Obviously, the main ingredient needed for a zombie apocalypse is zombies. However, the problem with zombies is they’re dead. Many films and television shows would have you believe that there would be an unending supply of dead bodies on the move during the zombie apocalypse because every dead person would start stumbling around on the search for human flesh. However, one of the things that make zombies so terrifying would be their undoing.
They rot.
Dead bodies follow a predictable pattern of decay, featuring five different stages: fresh, bloat, active decay, advanced decay, and dry/skeletal. During the fresh stage, rigor mortis sets in and body fluids begin to pool. Within hours of death, the body starts to turn on itself, with the bacteria in the digestive tract beginning to literally digest the body from the inside out. Chemical waste creates an acidic environment as putrefaction begins, often within 36 hours. Many zombies seen in movies are in the “fresh” stage, characterized with skin lesions and minor discoloration.
However, within hours or days (depending on the environment), the bloat stage would begin, featuring gaseous buildup and massive discoloration. By this time, the eggs laid by flies in the open orifices would hatch, causing the body to erupt in maggots, which feed on the dead flesh. By the time the body reaches the active and advanced decay stage, it would be falling apart. The remaining skin would drop away from the bone, and the internal organs and other soft tissues (including the brain itself) would have liquefied, leaving very little zombie.
The final stage of dry/skeletal could remain for years in the on, but there would be no muscles, tendons, or ligaments left to hold the bones together, much less give them mobility.
Of course, this is assuming there are no outbreaks in a largely populated area.
You’d better aim for the head, just in case.
The Answer: Only a few months
Obviously, the main ingredient needed for a zombie apocalypse is zombies. However, the problem with zombies is they’re dead. Many films and television shows would have you believe that there would be an unending supply of dead bodies on the move during the zombie apocalypse because every dead person would start stumbling around on the search for human flesh. However, one of the things that make zombies so terrifying would be their undoing.
They rot.
Dead bodies follow a predictable pattern of decay, featuring five different stages: fresh, bloat, active decay, advanced decay, and dry/skeletal. During the fresh stage, rigor mortis sets in and body fluids begin to pool. Within hours of death, the body starts to turn on itself, with the bacteria in the digestive tract beginning to literally digest the body from the inside out. Chemical waste creates an acidic environment as putrefaction begins, often within 36 hours. Many zombies seen in movies are in the “fresh” stage, characterized with skin lesions and minor discoloration.
However, within hours or days (depending on the environment), the bloat stage would begin, featuring gaseous buildup and massive discoloration. By this time, the eggs laid by flies in the open orifices would hatch, causing the body to erupt in maggots, which feed on the dead flesh. By the time the body reaches the active and advanced decay stage, it would be falling apart. The remaining skin would drop away from the bone, and the internal organs and other soft tissues (including the brain itself) would have liquefied, leaving very little zombie.
The final stage of dry/skeletal could remain for years in the on, but there would be no muscles, tendons, or ligaments left to hold the bones together, much less give them mobility.
Of course, this is assuming there are no outbreaks in a largely populated area.
You’d better aim for the head, just in case.

