10. Drugs
Let us be clear here. It seems like a cop-out to say “drugs” and be done with it. However, we are talking about a real zombie apocalypse and how it could happen. Not including drugs on the list would be insane of us. To connect to our version of a zombie, we could add a lot of drugs to this list. Just for a few examples, we’re going to use cocaine and meth. Cocaine is often snorted into the sinuses and goes into the brain, impairing it as well as giving it a major high.

This is considered an “upper” on the street. There are various versions of it but all of them make you go completely insane. Most people with addictions to it are smaller, develop sores, and look horrific. Meth is similar, and it’s usually injected into the bloodstream. Meth is made mostly out of household products you’ll see under your sink as well as sinus medications like Sudafed. Like cocaine, it is an upper that could kill anyone who uses it. Most addicted to it will look horrific, like zombies.