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世界卫生组织派出的调查组于1987年到中国进行调查,发现贵阳地区患高血压、脑卒中、心脏病死亡的人少,可是具体原因没有搞清楚。1997年,调查组再次来到贵阳,又一次进行调查。贵阳地处高原,海拔1000～1500米。白色的石灰岩地层随处可见,含在土壤里的石灰成分多,不适合种稻谷。远
The investigation team dispatched by the World Health Organization conducted a survey in China in 1987 and found that there were fewer people who died of high blood pressure, stroke and heart disease in Guiyang, but the specific reasons were not clarified. In 1997, the investigation team again came to Guiyang and conducted another survey. Guiyang is located in the plateau, elevation 1000 ~ 1500 meters. White limestone formations can be seen everywhere, containing more lime in the soil, not suitable for planting rice. far