ScienceDaily: Latest Science News

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• Is there a link between obesity, chronic illness and bullying?
• Mother kangaroos at higher health risk than than their non-reproducing sisters
• Salamanders spell out evolution in action
• Integrating science and medicine in the treatment of chronic disease
• Botulinum toxin does not cure common forms of neck pain
• Simple rapid diagnostic tests for malaria work well
• Cutting down on salt doesn't reduce your chance of dying, review suggests
• Vitamin D can help elderly women survive, review suggests
• A gut-full of probiotics for your neurological well-being
• Test for chromosome abnormalities sheds light on genetic origins of faulty eggs
• Frozen embryo transfer leads to larger and heavier babies
• Final space shuttle to carry five University of Colorado at Boulder-built payloads
• Functioning small intestine created in laboratory experiments
• Twin study shows lifestyle, diet can significantly influence course of macular degeneration
• Smithsonian's National Zoo welcomes whooping crane
• Researchers characterize biomechanics of ovarian cells according to phenotype at stages of cancer
• The impact of candidates' statements about climate change on electoral success
• Distract yourself or think it over? Two ways to deal with negative emotions
• How hot did Earth get in the past? Team of scientists uncovers new information
• Cool-season grasses more profitable than warm-season grasses; Swine effluent provides fertilizer boost equal to urea
• Termites' digestive system could act as biofuel refinery
• Rhesus monkeys appear to have a form of self-awareness not previously attributed to them, research suggests
• Patients at small, isolated, rural hospitals in US more likely to receive lower quality of care
• Poor countries have disproportionately higher burden of disease from stroke than from heart disease
• Treatment of newborn children of HIV-1 infected mothers with certain HIV medication associated with adrenal dysfunction
• Healthy lifestyle associated with low risk of sudden cardiac death in women
• Small, rural hospitals show poorer results on measures of quality of care, patient outcomes
• Most percutaneous coronary interventions (such as balloon angioplasty) performed in U.S. for acute indications appear to be warranted
• Global safety monitoring of HIV drugs is essential, says International Forum
• New laser technology could kill viruses and improve DVDs
• Moving beyond embryonic stem cells: Encouragement on the horizon
• Infants learn to transfer knowledge by 16 months, study finds
• Sounding rockets study how winds in space drive currents in the upper atmosphere
• Bone loss prevention experiment on the last space shuttle flight
• Preventive use of one form of natural vitamin E may reduce stroke damage
• NASA's Hubble makes one millionth science observation
• 'Gifted' natural vitamin E tocotrienol protects brain against stroke in three ways
• Fisher decline documented in California
• Gene secrets of the reef revealed: Genome of staghorn coral Acropora millepora sequenced
• Laser, electric fields combined for new 'lab-on-chip' technologies
• Safer skies: New algorithm could help prevent midair collisions
• New technology makes textiles permanently germ-free
• Behavioral treatment for migraines a cost-effective alternative to meds, study finds
• Cotton gin dust emissions
• Research bolsters importance of horseshoe crab spawning for migrating shorebirds
• High folate intake may reduce risk of colorectal cancer
• Not all tests are created equal: Identifying C. diff in hospital labs
• Those aching joints could be in your genes
• Radiation rates for breast cancer may be underestimated, study finds
• New technology enables quick and scarless surgery for stomach tumors
• Hot springs microbe yields record-breaking, heat-tolerant enzyme
• Metabolic shift may offer early cancer clue
• Diabetes drug side effects traced to fat action
• Researchers flip the switch between development and aging in C. elegans
• Findings in mice have potential to curb obesity and Type 2 diabetes
• Surprising culprits behind cell death from fat and sugar overload
• Kinetochores prefer the 'silent' DNA sections of the chromosome
• Embedding microchips in ornamental shrubs
• Best-preserved house from the period of the Kingdom of Israel is uncovered at Tel Shikmona
• Voting in elections is stressful -- emotionally and physiologically

Is there a link between obesity, chronic illness and bullying? Posted: 05 Jul 2011 06:10 PM PDT A study exploring the prevalence of overweight and obesity in nine-year-olds and its associations with chronic illness and bullying has recently been completed. The study found obesity to be more prevalent in girls. In addition children, particularly boys with an abnormal body weight had a significantly higher rate of an ongoing chronic illness. Children who were overweight or obese were a lot more likely to be victimized by bullying when compared to children who were not overweight.

Mother kangaroos at higher health risk than than their non-reproducing sisters Posted: 05 Jul 2011 06:10 PM PDT Mother kangaroos face higher health risks to carry and raise their young than their non-reproducing sisters, a new study shows. The study demonstrated for the first time that mother Eastern Grey Kangaroos almost double their food intake and significantly reduce their time spent resting in order to meet the nutritional needs of their baby.

Salamanders spell out evolution in action Posted: 05 Jul 2011 06:10 PM PDT Lungless salamanders (Ensatina eschscholtzii) live in a horseshoe-shape region in California (a 'ring') which circles around the central valley. New research showed that reproductive isolation of E. eschscholtzii was driven by genetic divergence rather than adaption to different ecological habitats.

Integrating science and medicine in the treatment of chronic disease Posted: 05 Jul 2011 06:10 PM PDT Chronic non-communicable diseases, such as cardiovascular disease, diabetes, arthritis, chronic respiratory disorders and cancer represent the major global health problem of the 21st century and affect all age groups. The cost of treating these diseases is substantial. In a new article, an international group of scientists and medical doctors proposes an integrated method, using systems medicine, research, and personalized patient centered treatment, to look at chronic disease as a whole.

Botulinum toxin does not cure common forms of neck pain Posted: 05 Jul 2011 06:10 PM PDT There is no evidence that Botulinum toxin injections reduce chronic neck pain or associated headaches, says a group of scientists who reviewed nine trials involving a total of 503 participants.

Simple rapid diagnostic tests for malaria work well Posted: 05 Jul 2011 06:10 PM PDT When a person living in a malarial area gets a fever, health workers need to know the cause to make absolutely sure they give the right treatment. For many years in sub-Saharan Africa, primary health workers have often assumed a fever is caused by malaria, and given antimalarial drugs. This approach means sometimes people receive the wrong treatment for their illness. It also wastes resources and, over time, can promote resistance to available drugs. A new systematic review examines the accuracy of Rapid Diagnostic Tests (RDTs), which are designed to detect malaria based on the presence of parasite antigens, using a quick and easy to use format.

Cutting down on salt doesn't reduce your chance of dying, review suggests Posted: 05 Jul 2011 06:10 PM PDT Moderate reductions in the amount of salt people eat doesn't reduce their likelihood of dying or experiencing cardiovascular disease, according to a systematic review.

Vitamin D can help elderly women survive, review suggests Posted: 05 Jul 2011 06:10 PM PDT Giving vitamin D3 (cholecalciferol) to predominantly elderly women, mainly in institutional care, seems to increase survival. These women are likely to be vitamin D deficient with a significant risk of falls and fractures, according to a systematic review.

A gut-full of probiotics for your neurological well-being Posted: 05 Jul 2011 06:07 PM PDT Probiotics, often referred to as 'good bacteria', are known to promote a healthy gut, but can they promote a healthy mind? Exploring the new world of neurological probiotics, researchers present new ideas on how neurochemicals delivered directly to the gut, via probiotic intestinal microbiota, exert their beneficial effects in maintaining gastrointestinal health and even psychological well-being.

Test for chromosome abnormalities sheds light on genetic origins of faulty eggs Posted: 05 Jul 2011 03:42 PM PDT Researchers are developing a new way to test a woman's egg for chromosome abnormalities that avoids the need to manipulate and biopsy the egg itself. The research may also shed light on the crucial role played by certain genes in the development of chromosome abnormalities that are a major cause of miscarriages and conditions such as Down's syndrome.

Frozen embryo transfer leads to larger and heavier babies Posted: 05 Jul 2011 03:42 PM PDT Two studies from France and Denmark have shown that children born after frozen embryo transfer are larger and heavier. The risk for a baby to be too heavy for its gestational age at birth is increased 1.6 fold compared to IVF children from fresh embryo transfer and 1.5 fold compared to naturally conceived children, researchers say.

Final space shuttle to carry five University of Colorado at Boulder-built payloads Posted: 05 Jul 2011 03:39 PM PDT The University of Colorado Boulder is involved with five different space science payloads ranging from antibody tests that may lead to new bone-loss treatments to an experiment to improve vaccine effectiveness for combating salmonella when Atlantis thunders skyward July 8 on the last of NASA's 135 space shuttle missions.

Functioning small intestine created in laboratory experiments Posted: 05 Jul 2011 03:39 PM PDT Researchers have successfully created a tissue-engineered small intestine in mice that replicates the intestinal structures of natural intestine -- a necessary first step toward someday applying this regenerative medicine technique to humans.

Twin study shows lifestyle, diet can significantly influence course of macular degeneration Posted: 05 Jul 2011 03:38 PM PDT Eating a diet high in vitamin D, as well as the nutrients betaine and methionine, might help reduce the risk of macular degeneration, according to new research. A study of identical twins from the US World War II Twin Registry also found that the more a person smoked, the higher their risk of developing macular degeneration.

Smithsonian's National Zoo welcomes whooping crane Posted: 05 Jul 2011 03:38 PM PDT After an 88-year-long hiatus North America's tallest bird, the statuesque whooping crane (Grus americana), is once again on exhibit at the Bird House at the Smithsonian's National Zoological Whooping cranes are one of only two crane species native to the United States. There are only eight other zoos in the U.S. which exhibit these birds.

Researchers characterize biomechanics of ovarian cells according to phenotype at stages of cancer Posted: 05 Jul 2011 03:38 PM PDT Using ovarian surface epithelial cells from mice, researchers have released findings from a study that they believe will help in cancer risk assessment, cancer diagnosis, and treatment efficiency.

The impact of candidates' statements about climate change on electoral success Posted: 05 Jul 2011 03:38 PM PDT Candidates gain votes by taking a "green" position on climate change -- endorsing the existence of warming, human causation, and the need for taking action to address it, according to a new study.

Distract yourself or think it over? Two ways to deal with negative emotions Posted: 05 Jul 2011 03:38 PM PDT A big part of coping with life is having a flexible reaction to the ups and downs. Now, a new study finds that people choose to respond differently depending on how intense an emotion is.

How hot did Earth get in the past? Team of scientists uncovers new information Posted: 05 Jul 2011 03:38 PM PDT The question seems simple enough: What happens to Earth's temperature when atmospheric carbon dioxide levels increase? The answer is elusive. However, clues are hidden in the fossil record. A new study provides a much clearer picture of Earth's temperature approximately 50 million years ago when CO2 concentrations were higher than today. The results may shed light on what to expect in the future if CO2 levels keep rising.

Cool-season grasses more profitable than warm-season grasses; Swine effluent provides fertilizer boost equal to urea Posted: 05 Jul 2011 03:38 PM PDT Access to swine effluent or waste water can help a producer grow more grass. But a Texas researcher says the grass is "greener" economically if it is a cool-season rather than a warm-season variety. While the warm-season grasses appear to have a greater growth boost with swine effluent application, the cool-season grasses have marketing advantages that make it a more viable economic option.

Termites' digestive system could act as biofuel refinery Posted: 05 Jul 2011 03:36 PM PDT One of the peskiest household pests, while disastrous to homes, could prove to be a boon for cars, according to a new study.

Rhesus monkeys appear to have a form of self-awareness not previously attributed to them, research suggests Posted: 05 Jul 2011 03:36 PM PDT In the first study of its kind in an animal species that has not passed a critical test of self-recognition, a cognitive psychologist has demonstrated that rhesus monkeys appear to have a sense of self-agency -- the ability to understand that they are the cause of certain actions -- and possess a form of self-awareness previously not attributed to them.

Patients at small, isolated, rural hospitals in US more likely to receive lower quality of care Posted: 05 Jul 2011 03:36 PM PDT In the first national study to examine care at critical access hospitals (CAHs) in rural areas of the US, researchers found that CAHs have fewer clinical capabilities, lower quality of care, and worse patient outcomes compared with other hospitals.

Poor countries have disproportionately higher burden of disease from stroke than from heart disease Posted: 05 Jul 2011 03:36 PM PDT Poorer countries often have disproportionately higher rates of stroke disability and death than wealthier countries, according to new research. The study authors suggest stroke and heart disease rates may need to be considered separately for global disease reporting and prevention efforts.

Treatment of newborn children of HIV-1 infected mothers with certain HIV medication associated with adrenal dysfunction Posted: 05 Jul 2011 03:36 PM PDT Infants of human immunodeficiency virus 1 (HIV-1) infected mothers who were treated before and after birth with the protease inhibitor lopinavir-ritonavir were more likely to experience adrenal dysfunction, including life-threatening adrenal insufficiency in premature infants, compared with a zidovudine-based regimen, according to a preliminary report.

Healthy lifestyle associated with low risk of sudden cardiac death in women Posted: 05 Jul 2011 03:36 PM PDT Adhering to a healthy lifestyle, including not smoking, exercising regularly, having a low body weight and eating a healthy diet, appears to lower the risk of sudden cardiac death in women, according to a new study.

Small, rural hospitals show poorer results on measures of quality of care, patient outcomes Posted: 05 Jul 2011 03:36 PM PDT In an analysis of data from more than 4,500 hospitals that serve Medicare beneficiaries, critical access hospitals (CAHs; no more than 25 acute care beds, located more than 35 miles from the nearest hospital) had fewer clinical capabilities, worse measured processes of care and higher rates of death for patients with heart attack, congestive heart failure or pneumonia, compared to non-CAHs, according to a study in the July 6 issue of JAMA.

Most percutaneous coronary interventions (such as balloon angioplasty) performed in U.S. for acute indications appear to be warranted Posted: 05 Jul 2011 03:36 PM PDT In an examination of the appropriateness of the widespread use of percutaneous coronary interventions (PCIs), researchers found that of more than 500,000 PCIs included in the study, nearly all for acute indications were classified as appropriate, whereas only about half of PCIs performed for nonacute indications could be classified as appropriate, according to a new study.

Global safety monitoring of HIV drugs is essential, says International Forum Posted: 05 Jul 2011 03:36 PM PDT With increasing numbers of people worldwide -- five million in 2010 -- on antiretroviral drugs for the treatment of HIV, the International Forum for Collaborative HIV Research recommends that improved and sustained global drug safety monitoring, including monitoring for substandard products, drug diversion, inappropriate use and toxicity, is critical.

New laser technology could kill viruses and improve DVDs Posted: 05 Jul 2011 12:09 PM PDT Engineers have made a discovery in semiconductor nanowire laser technology that could potentially do everything from kill viruses to increase storage capacity of DVDs.

Moving beyond embryonic stem cells: Encouragement on the horizon Posted: 05 Jul 2011 12:09 PM PDT For nearly two decades, the medical world and the American public have grappled with the lightning-rod topic of stem cells, in particular the controversy surrounding cells from human embryos. But when researchers four years ago successfully "reprogrammed" adult body cells to become stem cells, some thought the ethical debate was nearly over. Those redirected cells, known as induced pluripotent cells, or iPS cells, show potential as therapy.

Infants learn to transfer knowledge by 16 months, study finds Posted: 05 Jul 2011 12:09 PM PDT Researchers have identified when an important milestone in infants' development occurs: the ability to transfer knowledge to new situations. In a series of studies, the researchers found that 8-month-olds had trouble using newly acquired knowledge in a different circumstance, but 16-month-olds could do so.

Sounding rockets study how winds in space drive currents in the upper atmosphere Posted: 05 Jul 2011 12:09 PM PDT This July, scientists will launch four rockets for a five-minute journey some 100 miles up into the atmosphere. The rockets will collect data on the charged particles as well as winds of neutral particles that sweep through the lower ionosphere and how each affects the other, ultimately causing these dynamo currents.

Bone loss prevention experiment on the last space shuttle flight Posted: 05 Jul 2011 12:09 PM PDT An experiment aboard Atlantis -- the last space shuttle launch of the NASA program -- is aimed at revealing strategies to protect future astronauts from bone loss during extended exposure to micro-gravity.

Preventive use of one form of natural vitamin E may reduce stroke damage Posted: 05 Jul 2011 12:09 PM PDT Ten weeks of preventive supplementation with a natural form of vitamin E called tocotrienol in dogs that later had strokes reduced overall brain tissue damage, prevented loss of neural connections and helped sustain blood flow in the animals' brains, a new study shows.

NASA's Hubble makes one millionth science observation Posted: 05 Jul 2011 12:09 PM PDT NASA's Hubble Space Telescope crossed another milestone in its space odyssey of exploration and discovery. On Monday, July 4, the Earth-orbiting observatory logged its one millionth science observation during a search for water in an exoplanet's atmosphere 1,000 light-years away.

'Gifted' natural vitamin E tocotrienol protects brain against stroke in three ways Posted: 05 Jul 2011 12:09 PM PDT A natural form of vitamin E called alpha-tocotrienol can trigger production of a protein in the brain that clears toxins from nerve cells, preventing those cells from dying after a stroke, new research shows. This process is one of three mechanisms identified so far that this form of vitamin E uses to protect brain cells after a stroke, meaning that this natural substance might be more potent than drugs targeting single mechanisms for preventing stroke damage.

Fisher decline documented in California Posted: 05 Jul 2011 10:28 AM PDT Researchers have reported a 73-percent decline in the density of fishers -- a house-cat sized member of the weasel family and candidate for endangered species listing -- on the Hoopa Valley Indian Reservation in northwestern California between 1998 and 2005.

Gene secrets of the reef revealed: Genome of staghorn coral Acropora millepora sequenced Posted: 05 Jul 2011 09:36 AM PDT Australian scientists have sequenced the genome of the staghorn coral Acropora millepora, a major component of the Great Barrier Reef and coral reefs worldwide. This is the first animal genome project to be carried out entirely in Australia, and is an important milestone in Australian biotechnology and in the study of coral reefs.

Laser, electric fields combined for new 'lab-on-chip' technologies Posted: 05 Jul 2011 09:36 AM PDT Researchers are developing new technologies that combine a laser and electric fields to manipulate fluids and tiny particles such as bacteria, viruses and DNA for a range of potential applications, from drug manufacturing to food safety.

Safer skies: New algorithm could help prevent midair collisions Posted: 05 Jul 2011 09:36 AM PDT The FAA has mandated that by 2020, all aircrafts must be equipped with a new tracking system that broadcasts GPS data, providing more accurate location information than ground-based radar. Researchers now have early result of an investigation, a new algorithm that uses data from the tracking system to predict and prevent collisions between small aircraft.

New technology makes textiles permanently germ-free Posted: 05 Jul 2011 09:36 AM PDT Researchers have invented a new technology that can inexpensively render medical linens and clothing, face masks, paper towels -- and yes, even diapers, intimate apparel and athletic wear, including smelly socks -- permanently germ-free.

Behavioral treatment for migraines a cost-effective alternative to meds, study finds Posted: 05 Jul 2011 09:36 AM PDT A cost analysis of migraine treatments comparing pharmaceuticals to well-documented behavioral approaches such as relaxation training, hypnosis and biofeedback found behavioral treatments often come out cheaper, particularly after a year or more.

Cotton gin dust emissions Posted: 05 Jul 2011 09:36 AM PDT The last of seven cotton gins is being tested this year as the fieldwork for a major 4-year cotton gin dust sampling project draws to a close. Scientists organized the project to intensively sample emissions from seven cotton gins across the Cotton Belt.

Research bolsters importance of horseshoe crab spawning for migrating shorebirds Posted: 05 Jul 2011 09:36 AM PDT Speculation that the welfare of a small, at-risk shorebird is directly tied to horseshoe crab populations is in part supported by new scientific research, according to a new study.

High folate intake may reduce risk of colorectal cancer Posted: 05 Jul 2011 09:36 AM PDT Intake of high levels of folate may reduce colorectal cancer risk, according to a new study. Folate is a water-soluble B vitamin that occurs naturally in food.

Not all tests are created equal: Identifying C. diff in hospital labs Posted: 05 Jul 2011 09:36 AM PDT A study from the microbiology lab at the Lifespan hospitals has found that some lab tests are much more accurate in identifying Clostridium difficile Toxin (C. diff) infection (CDI). A molecular method detects up to 50 percent more cases of C. diff than other methods. While molecular technology is more expensive, it allows for more cases to be identified and assists in patient safety efforts within the hospital in terms of preventing hospital-acquired C. diff infections.

Those aching joints could be in your genes Posted: 05 Jul 2011 09:33 AM PDT A study of 2,500 identical and fraternal twins reveals that genetic factors affect both spine degeneration and lower back pain. The discovery could revolutionize both the study and the treatment of the debilitating complaint.

Radiation rates for breast cancer may be underestimated, study finds Posted: 05 Jul 2011 09:33 AM PDT More breast cancer patients than previously believed may be receiving radiation treatments after breast-conserving surgery, a new study shows.

New technology enables quick and scarless surgery for stomach tumors Posted: 05 Jul 2011 09:33 AM PDT Singapore scientists have pioneered a new surgery technology which enables quick and scar-less surgery for stomach tumors. The innovative operation can be done in a short day surgery which last a few minutes to an hour without the need for hospitalization.

Hot springs microbe yields record-breaking, heat-tolerant enzyme Posted: 05 Jul 2011 09:33 AM PDT Scientists looking for unusual cellulose-digesting enzymes, called cellulases, have found one that works at a higher temperature, 109 Celsius, than any others found to date. The cellulase comes from an Archaea found in a Nevada hot spring. Enzymes like this may prove useful in reaction chambers where plant fiber (lignocellulose) is digested to release cellulose. The cellulase could then convert this cellulose to sugar to be fermented into biofuel.

Metabolic shift may offer early cancer clue Posted: 05 Jul 2011 09:33 AM PDT Cancer cells are well known for their altered metabolisms, which may help them generate the energy they need for rapid growth. Using an emerging imaging technology, researchers have discovered that those metabolic shifts actually develop even before detectable tumors form. By the same token, the studies in mice with liver cancer show that the altered tumor metabolism shifts back before established tumors shrink.

Diabetes drug side effects traced to fat action Posted: 05 Jul 2011 09:33 AM PDT For better or worse, a popular class of anti-diabetic drugs does more than lower blood sugar. One known as rosiglitazone (trade name Avandia) has been in the spotlight for its possible link to increased cardiovascular events, but it also seems to come with unexplained vascular benefits and an unwelcome tendency for weight gain. Now, two separate studies explore those other effects of the drugs known collectively as thiazolidinediones (TZDs), both of which stem from their activity in fat.

Researchers flip the switch between development and aging in C. elegans Posted: 05 Jul 2011 09:33 AM PDT When researchers dialed back activity of a specific mRNA translation factor in adult nematode worms they saw an unexpected genome-wide response that effectively increased activity in specific stress response genes that could help explain why the worms lived 40 percent longer under this condition. The study highlights the importance of mRNA translation in the aging process.

Findings in mice have potential to curb obesity and Type 2 diabetes Posted: 05 Jul 2011 09:33 AM PDT Scientists have uncovered a pathway in mice that allows white fat -- a contributor to obesity and Type 2 diabetes -- to burn calories in a way that's normally found in brown fat and muscle.

Surprising culprits behind cell death from fat and sugar overload Posted: 05 Jul 2011 09:33 AM PDT Excess nutrients, such as fat and sugar, don't just pack on the pounds but can push some cells in the body over the brink. Unable to tolerate this "toxic" environment, these cells commit suicide. Now, scientists have discovered three unexpected players that help a cell overloaded with fat initiate its own demise.

Kinetochores prefer the 'silent' DNA sections of the chromosome Posted: 05 Jul 2011 09:27 AM PDT The protein complex responsible for the distribution of chromosomes during cell division is assembled in the transition regions between heterochromatin and euchromatin. The centromere is a specialized region of the chromosome, on which a protein complex known as the kinetochore is assembled. During cell division, the kinetochore provides a point of attachment for molecules of the cytoskeleton, thereby mediating the segregation of chromosomes to the two opposing cell poles. Scientists have investigated the factors that play an essential role in the development of the kinetochore. According to new findings, both the organization of the chromosomes and epigenetic marks determine the location where a kinetochore and, eventually, a centromere can form.

Embedding microchips in ornamental shrubs Posted: 05 Jul 2011 07:43 AM PDT A new technology was introduced to embed identification chips in rose canes. Researchers designed and tested a method for embedding rose plants with radiofrequency identification microchips, then tracked the tagged plants using a database. The findings suggest that rose plants can be safely tagged with a microchip as early as the nursery phase without negative effects on plant appearance. The technology supports a variety of educational and research applications.

Best-preserved house from the period of the Kingdom of Israel is uncovered at Tel Shikmona Posted: 05 Jul 2011 07:43 AM PDT Exceptional detective-archaeological work at the first season of archaeological digs at Tel Shikmona, on the southern edge of Israel's city of Haifa, has uncovered the remains of a house dating back to the period of the Kingdom of Israel. Upon re-exposing the structure, archaeologists were amazed to find that it had remained well preserved and is in fact one of the best-preserved "Four-Room House" dating back to that period known today.

Voting in elections is stressful -- emotionally and physiologically Posted: 05 Jul 2011 07:42 AM PDT A new study has found that the level of cortisol -- the "stress hormone" -- in individuals immediately prior to casting a vote was significantly higher than in the same individuals in similar non-voting conditions. Researchers say this is a first step in understanding the link between biological stress and voting.

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