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HELSINKI, July 4 (Xinhua) -- A new Finnish research shows that sleeplessness may be hereditary, and insomniacs are more likely to die earlier than people with healthy sleep patterns.The research is the first to link insomnia with mortality risk, Finnish media reported on Monday.The research is conducted by the Institute of Occupational Health in collaboration with the University of Helsinki and the Finnish National Institute for Health and WelfareIn a large-scale twin study, the Finnish researchers followed the health status of 12,500 adult twin pairs during the years from 1990 to 2009. Twenty percent of the participants were suffering from sleeplessness symptoms, including difficulty in initiating sleep, nocturnal awakening and non-restorative sleep.The study found out that compared with unidentical twins, identical twins were more likely to suffer from similar insomnia symptoms. This finding indicates that genetic factors play a role in the formation of insomnia.Moreover, the participants were divided into three groups, according to their sleep qualities. Out of the participants, 48 percent were good sleepers, 40 percent average sleepers and 12 percent poor sleepers. The search result shows that insomnia-related symptoms may increase mortality risk.In addition, compared with good sleepers, 7 percent of the women and 22 percent of the men who were average sleepers were more likely to die earlier; and poor sleepers were 1.5 times more likely to die earlier.According to the researchers, sleeplessness is a common health problem among working-age cohort. Chronic sleeplessness raises the risk of many illnesses and accidents, and thus weakens people's quality of life and ability to operate properly.The experts suggest that insomniacs should seek medical treatment in time, and chronic insomnia patients should be better treated with non-drug therapy.

XICHANG, Sichuan, July 27 (Xinhua)-- China successfully launched an orbiter into space at 5:44 a.m. Beijing Time Wednesday, as a part of its indigenous satellite navigation and positioning network known as Beidou, or Compass system, sources with the launch center said.The orbiter,launched from the Xichang Satellite Launch Center in southwestern Sichuan Province, was boosted by a Long March-3A carrier rocket into a geostationary orbit.China started to build up its own satellite navigation system to break its dependence on the U.S. Global Positioning System (GPS) in 2000.A Long March-3A carrier rocket lifts off at the Xichang Satellite Launch Center in southwest China's Sichuan Province, July 27, 2011. China successfully launched into space a ninth orbiter for its independent satellite navigation and positioning network known as Beidou, or Compass System here early WednesdayBetween October 2000 and May 2003, the country set up a regional satellite navigation system after launching three Beidou geostationary satellites.The system was known as Beidou-1 and is said to have played an important role in the rescue efforts following the devastating earthquake in May 2008 in Wenchuan as it provided the only channel connecting the quake-hit area and the outside.The Beidou-1 system can not meet growing demand, so a better functional Beidou-2 regional and global navigation system will be set up, Qi Faren, former chief designer for Shenzhou spaceships said in an interview with Xinhua early this year.From April 2007 to April this year, China launched another eight orbiters to form its Beidou-2 system, which will eventually consist of 35 satellites.The network will provide satellite navigation, time and short message services for Asia-Pacific regions by 2012 and global services by 2020.

CANBERRA, Sept. 24 (Xinhua) -- Australian scientists on Saturday said a satellite due to re-enter Earth poses a negligible threat to life and property on Earth.U.S. National Aeronautics and Space Administration's Upper Atmosphere Research Satellite (UARS), which weighs more than five tons, is expected to re-enter the Earth's atmosphere at 1058 (AEST) on Saturday. The U.S.-based Center for Orbital and Re-entry Debris Studies estimates that re-entry could occur up to seven hours before or after this time.According to Nonathan Nally, a former editor of two space magazines and currently editor of the Australian Space News website, the satellite poses a negligible threat to life and property on Earth."Most of the satellite will burn up on re-entry, with perhaps as many as 26 stronger or harder small pieces surviving to reach the surface," Nally said in a statement."But with the majority of the Earth comprising oceans or uninhabited (or very sparsely populated) remote regions, the chances are overwhelming that any pieces of UARS that survive re- entry will fall harmlessly and never be seen again."Since the spacecraft is no longer powered, U.S. National Aeronautics and Space Administration has no control over where it comes down, but Nally said there is a small chance that debris from the satellite could land in Australia.Debris from SkyLab, another satellite which plunged to Earth, was scattered over parts of Western Australia in 1979. Skylab weighed about 77 tonnes, many times more than the UARS.?Dr Alice Gorman, a lecturer in the Department of Archaeology, specializing in space archaeology, at Flinders University in South Australia, said the UARS satellite re-entry is very reminiscent of Skylab in 1979."There is the same exaggeration of the hazard through the media, public anxiety as the advance warning allows for speculation, and a lack of understanding of what the risks actually are," he said in a statement."Should it land in Australia, we might expect the same rush for souvenirs as we saw with Skylab, as anything that has been in space has a special meaning on Earth."?UARS was launched on 12 September 1991 and decommissioned on 15 December 2005. Its total dry mass is about 5.5 tonnes. UARS is one of the largest NASA satellites to plunge back to Earth uncontrolled in the last 30 years.Since the beginning of the Space Age in the late-1950s, there have been no confirmed reports of an injury resulting from re- entering space objects.? Nor is there a record of significant property damage resulting from a satellite re-entry.

WASHINGTON, June 2 (Xinhua) -- When humans see red, their reactions become both faster and more forceful, according to a new study published this week in the U.S. bimonthly journal Emotion.The findings may have applications for sporting and other activities in which a brief burst of strength and speed is needed, such as weightlifting. But the authors caution that the color energy boost is likely short-lived.The study measured the reactions of students in two experiments. In the first, 30 fourth-through-10th graders pinched and held open a metal clasp. Right before doing so, they read aloud their participant number written in either red or gray crayon. In the second experiment, 46 undergraduates squeezed a handgrip with their dominant hand as hard as possible when they read the word "squeeze" on a computer monitor. The word appeared on a red, blue, or gray background.In both scenarios, red significantly increased the force exerted, with participants in the red condition squeezing with greater maximum force than those in the gray or blue conditions. In the handgrip experiment, not only the amount of force, but also the immediacy of the reaction increased when red was present.The colors in the study were precisely equated in hue, brightness, and chroma (intensity) to insure that reactions were not attributable to these other qualities of color."Red enhances our physical reactions because it is seen as a danger cue," explains coauthor Andrew Elliot, professor of psychology at the University of Rochester and a lead researcher in the field of color psychology. "Humans flush when they are angry or preparing for attack," he explains. "People are acutely aware of such reddening in others and it's implications."But threat is a double-edged sword, argue Elliot and coauthor Henk Aarts, professor of psychology at Utrecht University, in the Netherlands. Along with mobilizing extra energy, "threat also evokes worry, task distraction, and self-preoccupation, all of which have been shown to tax mental resources," they write in the paper.In earlier color research, exposure to red has proven counterproductive for skilled motor and mental tasks: athletes competing against an opponent wearing red are more likely to lose and students exposed to red before a test perform worse.