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BEIJING, June 27 (Xinhuanet) -- A "lean gene" that helps people keep slim was found closely related to diabetes and heart disease, according to a study pulished in Nature Genetics journal on Sunday.The scientists from Britain’s Medical Research Council Epidemiology Unit conducted the study.After comparing the genetic codes of more than 75,000 people, a gene called IRS1 was spotted as the decisive factor to lower the fat level in human body.But in further study, IRS1 was found putting people to a 20 percent higher risk of developing heart disease and type-2 diabetes.The study warned that people who appear slim and fit might be also at risk.But scientists suggest that the study results did not change the general message for most people."While this study pointed to genes as one factor in determining the risk of developing these conditions, it was important to remember that lifestyle factors like diet, exercise, cutting out smoking and maintaining a healthy weight also play a vital role in reducing the risk," said Ruth Loos, who led the study.

BEIJING, June 27 (Xinhuanet) -- A lost tribe has been spotted in the Amazon rainforests of Brazil, according to the media report Monday.The discovery was confirmed by National Indian Foundation (FUNAI) of Brazil, a government body overseeing indigenous peoples.The tribe was initially found through satellite images earlier this year and later confirmed by the observers in aerial fight over the area.There are approximately 200 members in this isolate community who share three straw-roofed buildings and make their living from growing corns, bananas and other crops.FUNAI does not contact with the new-found tribe or give its exact location in order to protect its life from being disturbed."Among the main threats to the well-being of these groups are illegal fishing, hunting, logging, mining, cattle ranching and drug trafficking," FUNAI coordinator Fabricio Amorim warned."The work of identifying and protecting isolated groups is part of Brazilian public policy," he said, and "to confirm something like this takes years of methodical work."

SAN FRANCISCO, June 20 (Xinhua) -- Facebook will launch new music service with a music tab and music dashboard in partnership with other online music services at its f8 annual developer conference in August, U.S. media reported on Monday.According to technology blog GigaOM, users will find a new tab called Music in the left-hand column on their pages, right where Facebook lists Photos, Friends, Deals and etc., and clicking on the new tab will open a page called Music Dashboard.The dashboard will feature friends' recommended songs, top songs, top albums and a "happening now" ticker that shows songs friends are playing.The blog said Facebook had reached partnership with Europe's popular music streaming service Spotify, which is gearing up to enter the U.S. market, and other online music services.Much of the attention at f8 should be focused on music, the blog quoted sources as saying.Last month, Facebook CEO and co-founder Mark Zuckerberg said at the eG8 Forum in Paris that he believes Facebook will focus on streaming music next.

LOS ANGELES, June 14 (Xinhua) -- Rural elders are far more likely to be overweight or obese, physically inactive and food insecure than their suburban counterparts, three risk factors for heart disease, diabetes and repeated falls, a new study suggests."The countryside can have an isolating effect," said lead researcher Steven P. Wallace, deputy director of the Center for Health Policy Research at the University of California, Los Angeles. "When even a trip to the grocery store is a significant drive, seniors can become trapped in their houses."The researchers based their finding on analyzing the lifestyles and living conditions in California countryside.The study found that despite living in the countryside, where open space is plentiful and there is often significant agricultural production, California's more than half a million rural elders have higher rates of developing various health problems than their urban and suburban counterparts.These problems include:-- Older adults in rural areas are more often overweight or obese (61.3 percent) than their urban (57.3 percent) and suburban (54.0 percent) counterparts;-- Rural older adults do not get enough exercise;-- One in five rural elders do not participate in either moderate or vigorous physical activity in their leisure time;-- Rural and urban older adults are more likely to be food insecure; and-- One in five low-income older adults in rural settings report that they cannot consistently afford enough food to last the month, a rate is about twice that of low-income suburban adults.Approximately 710,000 Californians aged 65 and over live in the countryside -- almost one-fifth of all older adults in the state. Yet rural elders experience unique challenges to healthy living, including a lack of sidewalks, street lights, transportation services, access to healthy food outlets, parks, exercise facilities and health care sites. California's rural areas are also challenged by a dearth of physicians and other primary care providers, compelling many seniors to travel long distances to seek care, according to the study.The findings were published Tuesday on the website of the American Association for the Advancement of Science.

WELLINGTON, July 29 (Xinhua) -- Scientists from around the world will gather on the east coast of New Zealand next week to discuss proposals to study "silent" earthquakes by drilling into the seabed.Silent quakes, also known as slow slip events, occur on the boundaries of the earth's tectonic plates, where one plate dives under another in areas known as subduction zones, and are slower than normal quakes, taking weeks or months to occur rather than seconds, and are rarely felt on the surface.About 70 scientists from 10 countries will convene in the city of Gisborne, which lies near the site of a major fault line and where scientists first identified silent earthquakes in 2002.Slow-slip events were first discovered with the advent of new measurement technologies on the west coast of Canada about 15 years ago and have since been recorded at about a dozen locations around the world, including four sites around New Zealand, said a spokesperson for New Zealand's Institute of Geological and Nuclear Sciences (GNS Science).About eight slow-slip episodes have occurred under Gisborne since 2002 at roughly two-year intervals.Scientists have proposed numerous theories to explain the phenomenon, but testing the theories is difficult as silent quakes happen many kilometers below ground."The best way to understand the true cause of slow-slip events is to drill into and sample the area on the plate boundary fault where they are known to occur, and monitor a whole range of physical and chemical properties at the plate interface," said Laura Wallace, of GNS Science.

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