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电磁场对生育有什么危害,知道吗?

发布日期:2024-07-07 05:22:41编辑:秩名


电磁场对人体结构的生物效应极其复杂,其涉及的因素较多,比如频率,波长,辐射强度以及接触时间,个人身高、体形,辐射的方向,辐射的组织类型等;人体是一个连贯的带电系统,而不是传统认为的化学机械模型。电磁场影响生育和妊娠的机制很复杂,因为母体与其的接触较胚胎或胎儿的接触更富有特色。此外,还因男性和女性解剖结构上存在着差异,如一个特定频率的电磁场会影响男性精子的生成,而另一个频率的电磁场则可能影响女性的性腺轴。
 
有关人类与电磁场关系的争论已多年,一种观点认为与热效应有关,就像微波炉加热食物一样,是组织发热的副产品;另一种观点则认为,与热效应无关,是非热反应的生物反应。尽管电磁效应是如何产生至今还不清楚,但非热效应的假设已得到了认可。
 
对于各种频率的辐射,人体或多或少都会吸收一部分,但吸收最有效的是调频波。研究表明,人类各器官组织对辐射的吸收不同,而人的眼、脑及睾丸特别敏感。人体各器官组织的水分和矿物质的含量决定对电磁场的反应的强弱。
 
据报道,生活在高压线附件或在电器部门工作的人,其生育能力下降,婴儿出生缺陷率、颅内肿瘤、白血病以及淋巴癌的发生率增加。同样在雷达装备站工作的人或手持雷达枪的法律实施人员,以及居住在广播电视转播站附近的人,也有同样的情况。20世纪40年代的一些研究表明,在海轮上操纵雷达的人,精子数量减少,其孩子Down’‘s综合征的发生率增加。现在的研究表明,磁共振操作人员和热疗的技术人员,她们的流产率也有增加。
 
研究表明,对暴露在不同频率、不同强度、不同时间电磁场的动物,其后代将出现不同程度的生育能力下降、宫内妊娠率下降、睾丸萎缩、流产、低体重以及出生缺陷。这些动物体内免疫系统的变化、内分泌及大脑神经传导的变化以及细胞表面钙离子的流失。这些动物的褪黑激素以及内分泌腺体分泌也受到抑制,雄性动物的睾酮分泌也下降。研究发现,接触与耳机频率相似的微波对脱氧核糖核酸有损伤。
 
1980年至1990年10年间的一系列研究证实,用电热毯、电热水床及房间用电阻丝加热的妇女,其流产率约增加50%。冬季因加热量的增加,流产率较夏季明显升高。
 
研究表明,电磁场某一段频率较其他频率有更大的损伤性。电磁频率和微波频率在人体解剖结构上的损害是确实存在的。当接触电磁场的实验动物感到紧张和烦躁时,可观察到其体内某种化学物质的增加。这种应激反应有时存在于一些感觉不到的电磁场里,但仍有化学物质的改变。无论是女性还是男性,应激反应均可导致内分泌紊乱,从而影响生育功能。
 
某些低频率的电磁波在初始时,可刺激免疫系统。若继续接触,免疫系统则转为抑制。一些不明原因的不孕,或一些夫妇双方都存在抗体的不育患者,最终可追溯到电磁场的接触史。
 
如果想怀孕,应谨慎地避免和防范电磁场的影响,尽可能将电磁场对人的影响减少到最低限度。不要用电热毯,少用电吹风、剃须刀和耳机。与计算机屏幕之间的距离应保持一臂之长。改变工作环境,避开打印机、复印机、传真机。最强烈的电磁场影响是来自于仪器的背面和侧面。在家看电视,至少要离开2米远。家中的家用电器,如电磁灶、微波炉、电冰箱和洗衣机等,也得调整位置,尽可能离远一些,因为电磁波随着距离的增加,衰弱得很快。

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