science The Very Human Science Behind Demonic Possession  

Lea Rose Emery
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Though demonic possession has been explained by science and medicine, there's still a widespread popular belief in possessions and exorcisms. In fact, a 2003 Yougov poll of 1,000 Americans found that most believe in the existence of the devil - and just under half believe in the power of exorcism. Granted, they don't think that these happen very often, but they definitely still believe that it works. Maybe it's the power of films like The Exorcist and The Exorcism of Emily Rose, maybe it's just plain old fascination with the demonic, but a lot of people chose to believe in religion over science when it comes to the apparently supernatural. 

But this misunderstanding about what causes people to appear possessed can do a lot of damage. Exorcisms are still performed with surprising regularity, often ignoring real mental and physical health issues. And even in this day and age, exorcisms gone wrong can still result in death. In so many instances, there are clearly underlying issues that cause the symptoms of possession, and the very real science is ignored in the face of religious or spiritual beliefs.

Read on for some real explanations for demonic possession, from epilepsy to accidental LSD trips.

Ergot Poisoning


Ergot Poisoning is listed (or ranked) 1 on the list The Very Human Science Behind Demonic Possession
Photo: via Wikimedia

The Salem witch trials began in 1692 and resulted in over 150 accusations of witchcraft. Many of the young women accused displayed violent contortions of their bodies, outbursts, hallucinations, and spasms. The frenzied accusations and confessions - as well as the subsequent execution of the accused "witches" - are now a source of embarrassment and have often been described as mass hysteria or religious fervor.

But there may be another explanation. Linda Caporael, a behavioral psychologist studying the trials in the 1970s, saw many of the symptoms of ergotism, or ergot poisoning. Ergot (from which LSD is derived) is caused by a fungus which can affect rye grain - the major grain in Salem at the time. The symptoms of ergotism? Vomiting, delusions, hallucinations, and muscle spasms, just to name a few.

Epilepsy


Epilepsy is listed (or ranked) 2 on the list The Very Human Science Behind Demonic Possession
Photo:  Aurora Consurgens/via Wikimedia

The Story of Emily Rose may be one of the most famous on-screen portrayals of demonic possession, but it had real-life roots in the tragic story of Anneliese Michel. Her "demonic possessions" consisted of shouting obscenities, self-mutilation, and displays of aggression. She refused food for an extended period, weighing only 68 pounds at the time of her death.

The two priests who held dozens of exorcisms on Michael were eventually convicted of negligent mansaughter and the prosecution pointed to clear scientific reasons behind her death. She had a history of depression and was diagnosed with epilepsy at 16, but in the months leading up to her death, she was not receiving medical treatment. At the trial, doctors said that she had died of a combination of mental illness and epilepsy in an intensely religious environment. Professor Hans Sattes of Wuertzburg University claimed these combined to "a spiritual sickness and heavy psychic disturbance."

Dermographism Urticaria


Dermographism Urticaria is listed (or ranked) 3 on the list The Very Human Science Behind Demonic Possession
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It's a big Latin phrase that just translates into "writing on the skin" and it may explain one of the physical symptoms of demonic possession. In the case of Roland Doe, the real-life inspiration for The Exorcist, there were red marks found on his body described as looking "like lipstick"

There's a chance that raised red marks like these are actually done by the person themselves, even without them knowing. Dr. Kathleen Sands explained in a lecture called "Demonic Possession and Exorcism: Medical Explainations?" at the College of Physicians of Philadelphia that dermographism urticaria is a condition where someone traces or presses their skin so much it can create red lines or welts, even forming words. Of course, it would be pretty confusing (and spooky) if you didn't know the person suffered from the condition.  

Schizophrenia


Schizophrenia is listed (or ranked) 4 on the list The Very Human Science Behind Demonic Possession
Photo:  Daniel Chodowiecki/via Wikimedia

One of the most recent cases of exorcism in the news was in 2005 - the exorcism of Romanian nun Maricica Irina Cornici, which sadly resulted in her death. After saying the devil was speaking to her, she was tied to a cross and gagged to stop her making any sounds, before being left without food and water for three days. Her aunt said she "was disfigured, she had marks on her hands, her ankles and her stomach." 

But Cornici had previously been diagnosed with schizophrenia, a condition that has historically been confused with possession. Unfortunately, the priest who ran the exorcism didn't agree with the diagnosis. "God has performed a miracle for her, finally Irina is delivered from evil," he said after her death.