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Worst year in human history

25.11.2018

Mike McCormick, a researcher at Harvard University, notes that the year 536 can be considered the most terrible period that mankind has experienced.

On a summer day, fog descended on European territory, the Middle East and some regions of Asia, due to which the light was replaced by darkness. For about a year, people lived without sunlight, the average temperature dropped by 2,5 ° C. All these factors led to the fact that all plants died, people and animals did not have anything to eat.

A few years after the earth was enveloped in darkness, people began to massively overcome the plague, which hastened the collapse of the Roman Empire. For some reason, the dark ages are not mentioned in textbooks, they are not talked about in schools and universities when studying world history.

Recently, samples of the Swiss glacier obtained by McCormick and Paul Mayevsky have clarified the situation in 536. As it turned out, the darkness came because of the eruption of the Icelandic volcano, moreover, repeated. The ash spread throughout the Northern Hemisphere.

Scientists plan to study a volcano in Iceland in order to know at least the approximate time of a new eruption. According to experts, 536 was the most critical year. Scientists determine the level of stagnation by the amount of lead in the air for a given year. Silver was mined from lead by melting down the material.

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Recent research by cell biology and anatomy professor Xi-Kwong Jun Liu of Louisiana State University New Orleans reveals the impact of stress on brain structure. These results highlight potential therapeutic targets in the prevention and treatment of related pathologies.

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Stressors lead to detachment of the ends of astrocytes from synapses, which serve to transfer information between neurons.

In addition, the researchers have identified the mechanism that underlies these changes. They found that during a stressful event, the hormone norepinephrine suppresses the molecular pathway responsible for the production of the GluA1 protein, which is essential for communication between nerve cells and astrocytes.

These new discoveries provide a better understanding of the molecular changes that occur in the brain under stress and open the prospect of developing new therapeutic approaches to prevent and treat the pathologies associated with the negative effects of stress on the brain.

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