每天坐8小时中风风险高7倍

Adults under 60 who spend most of their days sitting have a higher risk of stroke compared to those who spend more time being physically active, a new study finds. People who reported sitting eight or more hours daily and were not very physically active otherwise were seven times more at risk of having a stroke than people who spent fewer than four hours being sedentary and at least 10 minutes exercising each day, according to a study published in Stroke from the American Heart Association.

一项发表在美国心脏协会出版的期刊《卒中》上的最新研究发现，对于年龄在60岁以下的成年人来说，如果每天绝大多数的时间都是坐着的，那么与经常锻炼的人相比，中风的风险会高出数倍。报告称，那些每天坐8小时或以上、且极少锻炼的人，中风的可能性要比那些每天坐着的时间不超过4小时、且每天至少锻炼10分钟的人高出7倍。

Researchers included the health information of 143,000 adults from the Canadian Community Health Survey in their analysis. The scientists followed the participants, who were 40 years and older with no prior history of stroke, for an average of 9.4 years.

研究人员对来自加拿大社区健康调查项目的14.3万名成年人的健康信息进行了平均长达9.4年的跟踪调查，参与者年龄均在40岁以上，且无中风病史。

"Sedentary time is thought to impair glucose, lipid metabolism and blood flow, and increase inflammation in the body," said lead study author Dr. Raed Joundi, clinical scholar at McMaster University in Ontario, Canada. "These changes, over time, may have adverse effects on the blood vessels and increase the risk of heart attack and stroke."

研究报告的主要作者、加拿大安大略省麦克马斯特大学临床学者瑞德•琼迪博士说："久坐被认为会影响血糖、脂质代谢和血液流动，增加体内炎症。时间一长，这些身体变化可能会给血管带来负面影响，增加心脏病发作和中风的风险。"