The mysterious 'death dance' has no answer for 500 years

Singing and dancing are one of the most popular and favorite ways to entertain and share emotions . in the world. But few people know that this seemingly harmless popular entertainment has caused a mysterious, traumatic event in history, challenging scientists for half a century.

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The incident began in July 1518, when a woman named Frau Troffer (also known as Troffea) in Alsace, France suddenly danced in a crazy way on the street. The strange thing is that she has a face that is very uncomfortable and painful, she constantly jumps without stopping for 5 consecutive days.

Troffea's actions caught the attention of many people, and on Friday, 34 others tried to participate in Troffea's strange, unintended dance. Like Trofea, most of them also dance wildly and cannot control themselves. They even danced and moved around every corner of the street and brought many people into this bizarre dance.

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At that time, the number of people participating in dancing was up to 400 people, mostly women. They do not eat, drink, and sleep, but are passionate about dancing, shouting for days, weeks, and months continuously. Even if there are people who die from exhaustion, heart attack or stroke as they dance on the street, the dancing group continues. The number of deaths as well as the number of new entrants to this strange group of people is increasing and there is no way to stop them. The fearful atmosphere covered the city.

Too frightened and desperate, the "ordinary" people in the city went to the top of the hill to pray and asked God for help. Amazingly, the "pandemic" has disappeared.

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But the cause of the "hysterical dance" at the time was still mysterious to humans to this day. No one can know exactly what can make a large number of people dance continuously throughout the day and night despite their lives.

Many different hypotheses are proposed to explain this phenomenon.

At that time, many people believed that "blood in the body warmed up" was the cause of that "hysterical dance". The only way to treat that syndrome is to dance until you can't dance anymore.

Some historians have argued that hunger and epidemics plagued Alsace in 1518, causing the lives of the people here to be miserable, deprived, and lurking on the side that made them suffer stress, agitation and cause of "mass hysteria". This agitation quickly spread throughout Alsace.

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Believers believe that for some reason the sufferers are subject to sanctions by St. Vitus. They hear music that others can't hear, lose control and dance crazy.

Another theory is that people with the disease have eaten a fungus that causes hallucinations that grow on cereals. If a person consumes a sufficient amount, they will hallucinate and begin to cause unusual behavior.

From 1518 until now, the mysterious phenomenon of bizarre dance no longer appears again.

In fact, today there is a disease called "Sydenham chorea syndrome", or "infectious chorea syndrome" that is quite similar to those of that year. Patients often have convulsions of arms, legs and face when dancing, especially this disease usually occurs in people with fever due to rheumatism. But scientists have not been able to determine if patients in 1518 had this disease.