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August 21, 2013

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Extreme temperatures raise risk of stroke deaths

Both hot and cold days can raise the risk of people dying from strokes, according to the research by scientists at Fudan University.

The findings, published in the latest issue of the journal Neurology, showed that changes in temperature can greatly influence the risk of death from strokes. The scientists said this was evidence that highlighted the importance of improving people’s ability to cope with extreme variations in temperature.

Leading researcher Kan Haidong said strokes were one of the major reasons for death and disability in Chinese people and its incidence and mortality were higher than in Western countries.

To study the relationship between extreme temperatures and deaths due to strokes, his team studied more than 12,700 cases in  eight cities with different climates — Shanghai, Shenyang, Tangshan, Beijing, Taiyuan, Suzhou, Guangzhou and Hong Kong.

Compared to normal temperatures, a heat wave can raise the risk of stroke deaths by 14 percent. Extremely cold temperatures, which lasted longer, raised the risk by 45 percent.



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