Insomnia Raises Risk of High Blood Pressure (WebMD)Information on Insomnia Raises Risk of High Blood Pressure (WebMD) under Blood Disorders section of the Health Articles & Reviews; Insomniacs who sleep less than five hours a night are five times more likely to develop high blood pressure than sound sleepers who get enough ... |
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Insomnia Raises Risk of High Blood Pressure (WebMD)
by Zografakis Alexandra 04-03-2009, 01:22 AM
Insomniacs who sleep less than five hours a night are five times more likely to develop high blood pressure than sound sleepers who get enough rest, a new study shows.
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04-09-2009, 06:38 AM
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京九管道疏通
地下管道长期处于半封闭的状态，清整化粪池缺少空气，氧气更少。因此，疏通菜池即使地下有易燃易爆气体，也不会发生燃烧爆炸的现象。但 当井盖打开以后，易燃易爆气体与空气混合，形成爆炸性气体。此时如果进行管道维修和焊接等作业 ，疏通地漏就会有燃烧爆炸的危险。因此，在作业前必须先用二氧化碳或 氮气进行置换。疏通马桶考虑以上两种气体为惰性气体，置换以后，为防止地下作业中毒事故的发生，在作业前还必须进行通风。通风方式 有自然通风和强制通风两种。疏通下水道一般 地下管道检查采取自然通风即可，必须打开附近3—4个井盖，通风时间至少1小时。特殊情况下，管道疏通前， 还必须采用强制通风，可用鼓风机接上风管实施管 下吹风
      
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