In Epidemics of the Middle Ages, published in 1844, J. F. C. Hecker described how a nun in a large convent in France began to meow like a cat. Soon afterwards, other nuns joined her. Eventually all the nuns meowed together daily at certain times, often for hours.
As bizarre as it sounds, it wasn’t an isolated case. Hecker tells of dozens of such cases of mass hysteria in European convents.
A nun in a German nunnery one day started biting other nuns. Before long, all the nuns began biting each other. The news of this strange behavior spread, and it wasn’t long before nuns in other convents in Germany began biting each other. The mania spread to Holland and even infected Rome.
At the time it was believed that certain animals, such as wolves, could possess people and in France cats were considered familiar with the Devil. Demons and witches were blamed for these mass outbreaks of hysterical and delusional behavior.
So it’s fascinating to read in the paper recently that in the twenty-first century such mass disorders still occur.
In the Middle Ages, young girls were often forced to join isolated religious orders that practiced ‘tough love’ in confined, all-female living quarters. Along with vows of chastity and poverty, many nuns endured near-starvation diets, repetitious prayer rituals and lengthy fasts. They were flogged and incarcerated for even minor transgressions.
No wonder they lost it. In such conditions, they easily could have been open to possession from lower entities. (Young initiates in shamanism are also typically experience sensory deprivation in order to make contact with the spirit world. But in shamanism, the initiates are guided toward positive spirit contact.)
Of course, mainstream medical authorities don’t accept the demon explanation or even refer to such cases as mass hysteria. They call it a stress-induced psychological disorder – ‘mass sociogenic illness’ – or ‘conversion disorder’ – a puzzling name.
Whatever it’s called – and whatever the source – such cases are still happening. The most recent one involved 15 teenage girls who underwent a mysterious outbreak of spasms, tics and seizures in upstate New York. A few weeks ago, 600 girls in a Catholic boarding school in Chalco, Mexico suffered fever, nausea and buckling knees that caused many of them to lose their ability to walk. In 2007, eight girls in Roanoke, Virginia high school developed symptoms like the upstate New York teens, and in 2002, ten teenage girls in a rural North Carolina high school had epileptic-like seizures and fainting spells.
One consistent finding among these recent cases was that doctors were unable to find any physical cause for the mass incidents. Also, most cases involve teenage girls.
Some researchers think that the way girls are socialized to deal with stress plays a role. In fact, one pediatric neurologist who interviewed ten of the girls in Le Roy, N.Y., the site of the latest case, said they all had ‘something big that happened,’ such as divorcing parents or some other major life transition.
Such mass disorders are also an example of synchronicity. Inner experiences of some sort are manifesting as physical symptoms and mysteriously spread from one person to another. The inability of modern medicine to find a source to such mass disorders leaves open the possibility of a link between unseen worlds and our everyday world.
















