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美国有专家对献过血的人和未献过血的人进行了跟踪调查,结果发现,献过血的男子,患心血管疾病的危险只有未献过血者的50%。研究人员解释说,这是因为铁元素在
An expert from the United States conducted a follow-up survey of blood donors and those who donated blood. The results showed that men who donated blood only suffered 50% less risk of cardiovascular disease than blood donors. The researchers explained that it is because of the presence of iron