Entry#11

THE TIBETANS

The Tibetan people are indigenous to Tibet and surrounding areas stretching from Central Asia in the North and West to Myanmar and China Proper in the East.Recent research shows that, although Tibetans living at high altitudes have no more oxygen in their blood than other people, they have 10 times more nitric oxide (NO) and double the forearm blood flow of low-altitude dwellers. Nitric oxide causes dilation of blood vessels allowing blood to flow more freely to the extremities and aids the release of oxygen to tissues. This may also help explain the typical rosy cheeks of high-altitude dwellers.Polyandry is practiced in some parts of Tibet, where a woman may marry her husband's brother. This is usually done to avoid division of property and provide financial security. However, monogamy is more common throughout Tibet. Marriages are sometimes arranged by the parents, if the son or daughter has not picked their own partner by a certain age.

it is so interesting to learn about other ethnic in this world. one of the minority tribes is the Tibetans who live at the high altitude land. it is so amazing to know how they can survive at such place and have o blood conditions differ from others. the presence of 10 times more nitric oxide in their blood is something that can't be explain. their tradition of marriage are also interesting where they practice the polyandry. this is something new to me. overall this article got a lot of information and really help me to know this tribe better.