Scientists have found an unexpected winter danger


Photo: Eugene biyatov / RIA Novosti

Low temperature increases the risk of heart attack. This is evidenced by the research of the Swedish scientists, whose results are published in the journal JAMA Cardiolgy.

Experts analyzed data from 274 thousand citizens of Sweden, which in 1998-2013 years was diagnosed with a myocardial infarction. Their age ranged from 50 to 89 years.

It turned out that at temperatures below zero Celsius the chance of heart attack was increased by ten percent. The scientists compared the data with indicators of air pollution, but found that critical cold. Thus with increasing temperature up to 2-4 degree heart attacks occurred less frequently.

The obtained results are explained by the fact that in the winter on the street, the blood vessels constrict, so the heart receives less oxygen. At risk are also those who get cold.

Video, photo All from Russia.


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