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“高氧水”真的可以预防高原反应么?并无此效果

科普中国-科学为你解疑释惑 2018-08-02

  青藏高原风景如画,是很多人向往的地方。但高原地区空气稀薄,长期在低海拔地区生活的人可能在高原上会出现高原反应。为了预防高原反应,人们在去高原之前会采取一系列的预防措施。据中国新闻网报道,7月10日晚,郑州的祝先生去青海旅游,大巴车到达湟源县休息时,有人上车以150元高价兜售市场价25元的“高氧水”,并声称可以预防高原反应,不少游客为了以防万一而购买。那么,新闻中提到的“高氧水”真的可以预防高原反应吗?

  《科技日报》介绍,所谓“高氧水”是通过加强压力将更多的氧气压进水里,一般每升水中的含氧量高于35毫克。但是健康成年人每次的呼吸量约为500毫升空气,在一个标准大气压下约合140毫克氧气,比“高氧水”中的氧气含量高多了。其次,“高氧水”是通过强大的压力把氧气压进水里,一旦在常规环境中打开,在正常的大气压下,额外溶解进水里的氧气就会被释放出来,原理就跟打开可乐罐时冒气泡一样。此外,即便把“氧气”喝进胃,它也不可能像呼吸一样进入肺内和血液交换,有可能只有极少数喝进去的“氧气”会经黏膜吸收。因此,靠喝“高氧水”来预防高原反应,完全没有科学依据。

  那么,对于需要进入高原的人来说,应该如何预防高原反应呢?

  据新民网报道,刚到高原,每个人都会出现不同程度的缺氧症状,严重的会头痛、全身肌肉痛、失眠。如果能够正确地保护自己,几天后这些症状都会好转或消失。反应缓解之后,应该控制自己的行为以保证安全。需要注意的是,初入高原,不可暴饮暴食,最好不要饮酒和吸烟。要多吃蔬菜、水果等富含维他命的物质,大量饮水。不可急速行走,也不能跑步,更不能做体力劳动,第一晚上要早休息,多睡觉。

  此外,新华网提醒大家,不建议患有心、肺、脑、肝、肾疾病以及严重贫血、高血压、糖尿病的病人进入高原。因为这些人群对高原环境的适应能力较差,在进入高原的初期,发生急性高原病的危险性明显高于其他人,若在高原停留时间过长,也较其他人易患各种慢性高原病。同时,由于机体要适应高原环境,心、肺等重要脏器的代偿活动增强,脏器的负担加重,可能会使病情进一步加重。(黄越)

  本文由中国人民解放军总医院第一附属(304)医院八一大楼门诊部主任彭国球进行科学性把关(专家领域:健康养生类、临床医学类、心理医学类)

责任编辑:王超

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