Deadliest killer of Human being in Universe

Science has made huge advances in medicine to deal with some of the worst diseases imaginable. However, there are still some diseases out there that have left us completely baffled. Some of these diseases have mysterious origins or affect the body in ways that are completely bizarre and unexplained. Maybe one day these crazy diseases can be explained and dealt with, but as of right now, they remain mysterious and elusive. From people dancing themselves to death to people that are allergic to water, these are some crazy diseases that science can’t explain

Encephalitis lethargica

This disease was quite terrifying when it struck in the early 1900s. Victims began to have hallucinations before their bodies locked up. Then, while they appeared to be asleep they were actually fully conscious. Many died at this stage. but if they didn’t, they would experience terrible behavioral issues for the rest of their lives.

The disease has not re-occurred and doctors still do not know what exactly happened although theories have been put forth (virus, immune response destroying the brain).

Acute flaccid myelitis

sometimes referred to as polio-like syndrome. This is neurologic illness that affects children and leads to weakness or paralysis.

Marburg virus

Named after the German city where it was first observed in 1967.

The Marburg virus is a hemorrhagic fever virus that is transferred to humans from monkeys and basically causes you to experience severe internal bleeding.

Exploding Head Syndrome

Sufferers experience insanely loud bangs that appear to originate in their own heads and doctors have absolutely no clue as to why.


The leading cause of death among infants 1 month to 1 year old.  It is also known as crib death because children will typically die in their sleep. The causes are unknown
Aquagenic urticah.

Also known as water allergy patients will experience a painful skin reaction if they come in contact with water.

Brainerd Diarrhea

Name after the town where it first was recorded, Brainerd, Minnesota, people afflicted with this disease typically experience up to 20 episode of diarrhea every day for up to a year. Eight outbreaks have been reported since the 1800s,

Stiff person syndrome

Imagine your muscles progressively getting more and more stiff until you are completely paralyzed. Doctors are not sure what exactly causes this and possible explanations include everything from diabetes to mutated genes.

Cyclic vomiting syndrome

Usually developing during childhood, symptoms are exactly what they sound like – repeated bouts of vomiting and nausea. Sufferers may vomit up to once every 5 minutes for nearly 3 weeks at a time.


Another hemorrhagic fever virus, Lujo has a lot in common with Ebola and the Margburg virus and was observed in South Africa and Zambia in 2008.

Twentieth-Century Disease

Also know as multiple chemical sensitivity, or MCS, this disease is characterized by negative reactions to various modern chemicals and products. Including plastics and synthetic fibers. Similar to the electromagnetic sensitivity, patients will not react when they do not know they are being exposed to the chemicals (blinded test), but do react when they are unblended.


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