These health-related causes and impacts of elevated hematocrit levels have been reported: 1  Fall in plasma levels. 2  Sleep apnea. 3  Dehydration. 4  In cases of dengue fever, a high hematocrit is a danger sign of an increased risk of dengue shock syndrome.
The Hmong traditionally farmed in the mountainous areas of China, Vietnam, Laos, and Thailand. Most of the Hmong were subsistence farmers who grew only enough food to feed their families, because farming was difficult in the mountainous regions where most of them lived.
Hmong Time Line. - Hmong people are first identified as occupying the Yellow River Valley in China. - Hmong people are still inhabiting the jungles and hills of China. 1800 - Hmong people begin to move to Indochina. - Hmong people cross the borders of China into Northern Laos.