二手烟还会伤害血管，妨碍血液循环并增加血块的危险性。

Secondhand smoke also damages blood vessels, interferes with circulation and increases the risk of blood clots.

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最易得此病的人是在飞行中大量饮酒的人，因为含酒精的饮料会引起脱水，也会妨碍血液循环。

The most likely victims drink a lot on their flight: alcohol causes dehydration which also interfere with the blood circulation.

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血液循环不通畅，妨碍免疫细胞抵达受到癌细胞侵袭的部位，导致癌症风险。

Poor blood circulations impaired the immune cells from reaching the site of cancer, thus facing the risk of having cancer.

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血液循环不通畅，妨碍免疫细胞抵达受到癌细胞侵袭的部位，导致癌症风险。

Poor blood circulations impaired the immune cells from reaching the site of cancer, thus facing the risk of having cancer.

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