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Study: Extreme temperatures raise risk of stroke

Extremely hot or cold weather can increase the risk of stroke in Chinese people, according to a research by Fudan University scientists.

The research published in the latest issue of Neurology magazine said extreme temperatures can increase the risk of stroke, one of the main causes of death and disability in China where fatal stroke incidence is higher compared with Western countries.

To study the connection between extreme temperature and fatal stroke, his team examined 12,700 fatal stroke cases in eight cities with different climate -- Shenyang, Tangshan, Beijing, Taiyuan, Suzhou, Shanghai, Guangzhou and Hong Kong.

They found that a heat wave can increase the risk of fatal stroke by 14 percent while a cold wave can increase the risk by 45 percent. The health impact of a heat wave usually ends three or four days later but the impact from a cold wave can last for 15 to 20 days.

"The study shows the importance of timely intervention to prevent vulnerable people from climate-induced cerebral damage," Kan said.


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