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The Bayu people live in the waters between the Philippines, Malaysia and Indonesia and are known as the "Sea Gypsy" for their amazing diving capabilities.
U.S. researchers have found that the Bayu people may have developed specialized genes that adapt to diving, causing their spleen to be 50 percent larger than the average person.
the Bayu are considered to be the last nomads at sea, fishing underwater or collecting sea cucumbers and shellfish 60 per cent of the working day.
fishmen are good divers, wearing only a wooden mask, with a few pieces of lead, you can freely dive 70 meters below sea level, one breath can stay underwater for 13 minutes.
"Others can't compare to them, only otters are similar," said Melissa Ilardo, an American geneticist.
shocked by the extraordinary diving ability of the Bayu people, Ilardo tried to find the answer from a genetic point of view, and chose the research as his doctoral thesis.
she lived for several months with an Indonesian Bayu tribe, taking their DNA samples and doing B-super for them, and found that the Bayu spleen was 50 percent larger than that of the Saluans who lived nearby.
spleen filters out aging cells and supports the immune system.
when a person is angry, the spleen becomes a "reservoir" rich in oxygen red blood cells, providing oxygen to the body and allowing the gas to be closed for longer periods of time.
's study of seals has shown that larger spleens are associated with longer dive stakes.
However, B-super shows that even non-diving baers have larger spleen spleen than the average person.
The Ilardo looked for the genetic answer and found that there were 25 significant differences in genes between the Saluans and the Malaysian Chinese.
the genetic variation numbered PDE10A may determine the size of the spleen of the Bayu people.
mice experiments showed that PDE10A affects thyroid hormone secretion, which in turn determines the size of the spleen. "The Barons may have evolved a particularly large spleen for long,high-frequency diving," the team, led by
, el-Yaldo, wrote in the American journal Cell.
" free diving is a very dangerous activity, and even specially trained free divers can lose consciousness and drown during submersion. If this had been the case for thousands of years, the survivors would have carried genes that are conducive to diving,
.
.