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.
The Hmong people are a minority ethnic group in several countries, believed by some researchers to be from the Yellow Basin area in China. The Hmong are known in China as the Miao, a designation that embraces several different ethnic groups. There is debate about usage of this term, especially amongst Hmong living in the West, as it is believed by some to be derogatory, although Hmong living in China still call themselves by this name.