ELI5: Explain Like I'm 5

Kuru (disease)

Kuru is a very rare disease that affects people in Papua New Guinea. It is caused by eating the brains of people who have died from the disease.

When our bodies get sick, it can be because of tiny creatures called germs. These germs can make us feel bad and cause harm to our bodies. Kuru is caused by a special kind of tiny germ that you can only get from eating the brains of someone who already has the disease.

This disease has been around for a very long time, and people used to think it was caused by ghosts or witchcraft. But scientists have now figured out that it is caused by a special kind of tiny germ called prions.

Prions are like little monsters that can change normal parts of our brains into something bad. When you eat brains infected with kuru, these prions go into your body and can start changing your own brain. This can cause many problems like problems with coordination, speech, and even death.

Because of this, it is very important to never eat the brains of people who have died from kuru. The good news is that this disease is very rare and you are unlikely to get it if you don't eat infected brains. Scientists are still studying this disease to try and find ways to prevent it from hurting anyone else.