ScienceDaily: Top News

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• Tracking endangered leatherback sea turtles by satellite, key habitats identified
• Nearly complete 'chicken from hell,' from mysterious dinosaur group
• Bighorn sheep went extinct on desert island in Gulf of California
• Fossils of earliest stick insect to mimic plants discovered: Ancient stick insect species mimicked plant leaves
• Noninvasive colorectal cancer screening tool shows unprecedented detection rates
• New guidelines deem 13 million more Americans eligible for statins
• Spices and herbs intervention helps adults reduce salt intake
• US women unfamiliar with most stroke warning signs
• Ruling with an iron fist could make your child pack on pounds
• Ancient food webs developed modern structure soon after mass extinction
• Earth's radiation belt: Van Allen probes reveal zebra stripes in space
• Sometimes less is more for hungry dogs
• Titanium clubs can cause golf course fires
• Goldilocks principle: Earth's continued habitability due to geologic cycles that act as climate control
• Radiation damage at the root of Chernobyl's ecosystems
• Forest corridors help plants disperse their seeds, study shows
• Low doses of antianxiety drugs rebalance autistic brain, study shows
• Potential New Therapeutic Target for Controlling High Blood Sugar
• Catching the early spread of breast cancer
• Best value for top quark's mass: Tevatron and LHC scientists announces first joint result
• New technique makes LEDs brighter, more resilient
• Magnetic behavior discovery could advance nuclear fusion
• Hox Genes Responsible for Firefly Lantern Development
• Pocket diagnosis: App turns any smartphone into a portable medical diagnostic device
• Genetic test could improve colon cancer screening
• Thermal conductance can be controlled like waves using nanostructures
• Vaccination: No-refrigeration, spray vaccine could curb diseases in remote areas
• Ancient DNA shows moa were fine until humans arrived
• Gut bacteria can cause life-threatening infections in preterm babies
• Student deciphers 1,800-year-old letter from Egyptian soldier
• New pathway connected to type 2 diabetes
• Rewrite the textbooks on water's surface tension: Air-water interface is negatively charged by the adsorption of hydroxide ions
• Lied-to children more likely to cheat, lie
• Understanding binge eating, obesity connection
• NASA historic Earth images still hold research value
• Fast synthesis could boost drug development
• The power of poison: Study examines pesticide poisoning of Africa's wildlife
• Football displays fractal dynamics: Real-time dynamics in a football game subject to self-similarity characteristics
• Drinking alcohol several times a week increases risk of stroke mortality
• A majority prefers letting computers decide
• Earliest evidence of limb bone marrow in the fin of a 370 million year old fish
• Humans drive evolution of conch size
• Cultural hitchhiking: How social behavior can affect genetic makeup in dolphins
• Owl monkeys don't cheat: Intensive fathering plays a role
• New method is a thousand times more sensitive to performance-enhancing drugs
• Tamiflu reduces risk of death by 25 percent in adults hospitalised with H1N1 pandemic influenza
• Statin may slow untreatable, progressive stage of multiple sclerosis
• Fried foods may interact with genes to influence body weight, say experts
• Increased adiposity and reduced physical activity in children: Cause or effect?
• Dog DNA has role in developing new therapies for human cancers
• New statistical models could lead to better predictions of ocean patterns
• Precise reason for health benefits of dark chocolate: Thank hungry gut microbes
• Building heart tissue that beats: Engineered tissue closely mimics natural heart muscle

Tracking endangered leatherback sea turtles by satellite, key habitats identified Posted: 19 Mar 2014 04:58 PM PDT Most satellite tagging studies of leatherbacks have focused on adult females on their tropical nesting beaches, so little is known worldwide about males and subadults, the researcher point out. But now, tagging and satellite tracking in locations where leatherbacks forage has allowed the scientists to get a much richer picture of the leatherback's behavior and dispersal patterns on the open ocean.

Nearly complete 'chicken from hell,' from mysterious dinosaur group Posted: 19 Mar 2014 04:58 PM PDT Scientists have discovered a bizarre, bird-like dinosaur, named Anzu wyliei, that provides paleontologists with their first good look at a dinosaur group that has been shrouded in mystery for almost a century. Anzu was described from three specimens that collectively preserve almost the entire skeleton, giving scientists a remarkable opportunity to study the anatomy and evolutionary relationships of Caenagnathidae -- the long-mysterious group of theropod dinosaurs to which Anzu belongs.

Bighorn sheep went extinct on desert island in Gulf of California Posted: 19 Mar 2014 04:58 PM PDT Using ancient DNA analysis and other techniques, a research team led by conservation biologists has determined that bighorn sheep, so named for their massive spiral horns, became extinct on Tiburon Island, a large and mostly uninhabited island just off Sonora, Mexico, in the Gulf of California, sometime in the last millennium -- specifically between the 6th and 19th centuries.

Fossils of earliest stick insect to mimic plants discovered: Ancient stick insect species mimicked plant leaves Posted: 19 Mar 2014 04:58 PM PDT An ancient stick insect species may have mimicked plant leaves for defense, according to a new article. Many insects have developed defense mechanisms, including the ability to mimic the surrounding environment. Stick and leaf insects mimic plants from their environment, but scientists know little about the original of this interaction due to little or no previous stick insect fossil records showing this adaptation. The scientists discovered three specimens, one female and two males, belonging to a new fossil stick insect referred to as Cretophasmomima melanogramma, in Inner Mongolia at the Jehol locality, a site from the Cretaceous period (approximately 126 million years ago).

Noninvasive colorectal cancer screening tool shows unprecedented detection rates Posted: 19 Mar 2014 04:57 PM PDT Results of a clinical trial of Cologuard show unprecedented rates of precancer and cancer detection by a noninvasive test. The detection rates are similar to those reported for colonoscopy. Cologuard, is a noninvasive sDNA test for the early detection of colorectal precancer and cancer. The Cologuard test is based on a stool sample that is analyzed for DNA signatures of precancer or cancer.

New guidelines deem 13 million more Americans eligible for statins Posted: 19 Mar 2014 04:57 PM PDT New guidelines for using statins to treat high cholesterol and prevent cardiovascular disease are projected to result in 12.8 million more U.S. adults taking the drugs, according to a new research. The new guidelines expand the criteria for statin use to include people whose 10-year risk of developing cardiovascular disease, including stroke, is elevated based on a risk-assessment score.

Spices and herbs intervention helps adults reduce salt intake Posted: 19 Mar 2014 01:52 PM PDT A behavioral intervention that taught adults to use herbs and spices instead of salt led to a decrease in sodium consumption compared to people who tried to reduce sodium on their own. Adults taking part in a 20-week behavioral intervention consumed 966 mg/day less salt than their self-directed counterparts.

US women unfamiliar with most stroke warning signs Posted: 19 Mar 2014 01:52 PM PDT Many US women don't know most of the warning signs of a stroke. Hispanic women were less likely than others to know the warning signs of a stroke. Nearly all women knew that they should immediately call 9-1-1 if they suspected that they were having a stroke.

Ruling with an iron fist could make your child pack on pounds Posted: 19 Mar 2014 01:52 PM PDT Kids whose parents are demanding but not emotionally responsive are about one-third more likely to be obese than kids whose parents set healthy boundaries, are affectionate and discuss behavior. Researchers compared kids whose parents are generally affectionate, have reasonable discussions about behavior with their child and set healthy boundaries (authoritative) with those whose parents were strict about limits without much dialogue or affection (authoritarian).

Ancient food webs developed modern structure soon after mass extinction Posted: 19 Mar 2014 01:48 PM PDT Analysis of a highly detailed picture of feeding relationships among 700 species from a 48 million year old ecosystem provides the most compelling evidence to date that ancient food webs were organized much like modern food webs. The results are significant because they show that the Messel ecosystem developed a modern ecological structure, along with a modern biota, in a relatively brief 18 million year period following Earth's most recent die-off, the end-Cretaceous mass extinction, which disrupted ecosystem dynamics on a massive scale and served as a species diversity bottleneck.

Earth's radiation belt: Van Allen probes reveal zebra stripes in space Posted: 19 Mar 2014 12:32 PM PDT Scientists have discovered a new, persistent structure in one of two radiation belts surrounding Earth. NASA's twin Van Allen Probes spacecraft have shown that high-energy electrons in the inner radiation belt display a persistent pattern that resembles slanted zebra stripes. Surprisingly, this structure is produced by the slow rotation of Earth, previously considered incapable of affecting the motion of radiation belt particles, which have velocities approaching the speed of light.

Sometimes less is more for hungry dogs Posted: 19 Mar 2014 12:31 PM PDT Hungry dogs would be expected to choose alternatives leading to more food rather than less food. But just as with humans and monkeys, they sometimes show a 'less is more' effect. Thus conclude scientists who tested the principle by feeding baby carrots and string cheese to 10 dogs of various breeds.

Titanium clubs can cause golf course fires Posted: 19 Mar 2014 11:39 AM PDT Titanium alloy golf clubs can cause dangerous wildfires, according to scientists. When a club coated with the lightweight metal is swung and strikes a rock, it creates sparks that can heat to more than 3,000 degrees Fahrenheit for long enough to ignite dry foliage, according to new findings.

Goldilocks principle: Earth's continued habitability due to geologic cycles that act as climate control Posted: 19 Mar 2014 11:39 AM PDT Scientists have shown how geologic process regulates the amount of carbon dioxide in the atmosphere. Researchers have documented evidence suggesting that part of the reason that Earth has become neither sweltering like Venus nor frigid like Mars lies with a built-in atmospheric carbon dioxide regulator -- the geologic cycles that churn up the planet's rocky surface.

Radiation damage at the root of Chernobyl's ecosystems Posted: 19 Mar 2014 09:48 AM PDT Radiological damage to microbes near the site of the Chernobyl disaster has slowed the decomposition of fallen leaves and other plant matter in the area, according to a new study. The resulting buildup of dry, loose detritus is a wildfire hazard that poses the threat of spreading radioactivity from the Chernobyl area.

Forest corridors help plants disperse their seeds, study shows Posted: 19 Mar 2014 09:48 AM PDT A forest, a supercomputer and some glow-in-the-dark yarn have helped a team of field ecologists conclude that woodland corridors connecting patches of endangered plants not only increase seed dispersal from one patch to another, but also create wind conditions that can spread the seeds for much longer distances. An environmental engineer leveraged Ohio Supercomputer Center systems to simulate a forest and the winds that flow through it.

Low doses of antianxiety drugs rebalance autistic brain, study shows Posted: 19 Mar 2014 09:48 AM PDT New research in mice suggests that autism is characterized by reduced activity of inhibitory neurons and increased activity of excitatory neurons in the brain, but balance can be restored with low doses of a well-known class of drugs currently used in much higher doses to treat anxiety and epileptic seizures. The findings point to a new therapeutic approach to managing autism.

Potential New Therapeutic Target for Controlling High Blood Sugar Posted: 19 Mar 2014 09:45 AM PDT A new potential therapeutic target for controlling high blood sugar has been discovered by scientists, a finding that could help the estimated 25 million Americans with type 2 diabetes. Researchers showed that lipid molecules called phosphatidic acids enhance glucose production in the liver. These findings suggest that inhibiting or reducing production of phosphatidic acids may do the opposite.

Catching the early spread of breast cancer Posted: 19 Mar 2014 09:45 AM PDT When cancer spreads, it becomes even more deadly. It moves with stealth and can go undetected for months or years. But a new technology that uses "nano-flares" has the potential to catch these tumor cells early. Scientist present the latest advances in nano-flare technology as it applies to the detection of metastatic breast cancer cells.

Best value for top quark's mass: Tevatron and LHC scientists announces first joint result Posted: 19 Mar 2014 08:53 AM PDT Scientists working on the world's leading particle collider experiments have joined forces, combined their data and produced the first joint result from Fermilab's Tevatron and CERN's Large Hadron Collider (LHC), past and current holders of the record for most powerful particle collider on Earth. Scientists from the four experiments involved -- ATLAS, CDF, CMS and DZero -- announced their joint findings on the mass of the top quark today at the Rencontres de Moriond international physics conference in Italy.

New technique makes LEDs brighter, more resilient Posted: 19 Mar 2014 08:48 AM PDT Researchers have developed a new processing technique that makes light emitting diodes brighter and more resilient by coating the semiconductor material gallium nitride with a layer of phosphorus-derived acid.

Magnetic behavior discovery could advance nuclear fusion Posted: 19 Mar 2014 08:46 AM PDT Inspired by the space physics behind solar flares and the aurora, a team of researchers has uncovered a new kind of magnetic behavior that could help make nuclear fusion reactions easier to start.

Hox Genes Responsible for Firefly Lantern Development Posted: 19 Mar 2014 08:46 AM PDT Perhaps no single evolutionary novelty in the animal kingdom has fascinated scientists more than the lantern of the firefly. Yet to this day, nothing has been known about the genetic foundation for the formation and evolution of this luminescent structure. But now, new work offers for the first time a characterization of the developmental genetic basis of this spectacular morphological novelty -- the firefly's photic organ -- and the means by which this beetle successfully uses ancient and highly conserved regulatory genes to form its lantern.

Pocket diagnosis: App turns any smartphone into a portable medical diagnostic device Posted: 19 Mar 2014 07:36 AM PDT A new app that turns any smartphone into a portable medical diagnostic device could help in the fight against diseases including HIV, tuberculosis and malaria in the developing world. "This app can substitute for laboratory equipment, saving money to clinics and research institutions," said the developer of the app.

Genetic test could improve colon cancer screening Posted: 19 Mar 2014 07:36 AM PDT A non-invasive test that includes detection of the genetic abnormalities related to cancer could significantly improve the effectiveness of colon cancer screening, according to research. The results from this study could impact screening rates, which remain frustratingly low in the U.S. despite the evidence of their effectiveness.

Thermal conductance can be controlled like waves using nanostructures Posted: 19 Mar 2014 07:34 AM PDT Thermal conduction is a familiar everyday phenomenon. In a hot sauna, for instance, you can sit comfortably on a wooden bench that has a temperature of 100C (212F), but if you touch a metallic nail with the same temperature, you will hurt yourself. The difference of these two experiences is due to the fact that some materials, such as metals, conduct heat well, whereas some other materials, such as wood, do not. It is therefore commonly thought that thermal conductance is simply a materials parameter. Now, researchers have demonstrated for the first time that it is possible to change the thermal conductance of a material by tuning the wave-like properties of heat flow, by orders of magnitude, using nanostructuring.

Vaccination: No-refrigeration, spray vaccine could curb diseases in remote areas Posted: 19 Mar 2014 07:33 AM PDT A new kind of single-dose vaccine that comes in a nasal spray and doesn't require refrigeration could dramatically alter the public health landscape -- get more people vaccinated around the world and address the looming threats of emerging and re-emerging diseases.

Ancient DNA shows moa were fine until humans arrived Posted: 19 Mar 2014 06:44 AM PDT A study strengthens the case for human involvement in the disappearance of New Zealand's iconic megaherbivore, the moa -- a distant relative of the Australian Emu. All nine species of New Zealand moa, the largest weighing up to 250 kilograms, became extinct shortly after Polynesians arrived in the country in the late 13th century.

Gut bacteria can cause life-threatening infections in preterm babies Posted: 19 Mar 2014 06:42 AM PDT Babies born prematurely are surviving in increasing numbers. But many withstand complications of early birth only to suffer late-onset sepsis -- life-threatening bloodstream infections that strike after infants reach 72 hours of age. The causes of late-onset sepsis have not been clear. But now, researchers have discovered that preterm babies' guts harbor infectious microbes that can cause late-onset sepsis.

Student deciphers 1,800-year-old letter from Egyptian soldier Posted: 19 Mar 2014 06:42 AM PDT A newly deciphered 1,800-year-old letter from an Egyptian solider serving in a Roman legion in Europe to his family back home shows striking similarities to what some soldiers may be feeling here and now.

New pathway connected to type 2 diabetes Posted: 19 Mar 2014 06:42 AM PDT A cellular pathway that is responsible for keeping blood sugar levels low, has been found, and may prevent the onset of type 2 diabetes. Following a meal, beta cells found in islets of the pancreas secrete insulin that helps to store food energy for future use. The inability of islet beta cells to produce enough insulin leads to diabetes. Unlike other research that has focused on how to replicate beta cells, this study focused on how to make pre-existing beta cells more functional, or better at secreting insulin.

Rewrite the textbooks on water's surface tension: Air-water interface is negatively charged by the adsorption of hydroxide ions Posted: 19 Mar 2014 06:42 AM PDT Researchers in Australia are confident their new research results will make significant differences to the calculations of surface tension of water used by the next generation of atmospheric scientists, biophysicists and engineers of technology like inkjet printers. These latest investigations have clinched a long-standing controversy amongst the physical Chemistry community; the air-water interface is negatively charged by the adsorption of hydroxide ions.

Lied-to children more likely to cheat, lie Posted: 19 Mar 2014 06:38 AM PDT A new experiment is the first to show a connection between adult dishonesty and children's behavior, with kids who have been lied to more likely to cheat and then to lie to cover up the transgression. Research has documented that the majority of parents admit to lying to their children even as they maintain that honesty is an important value. "The actions of parents suggest that they do not believe that the lies they tell their children will impact the child's own honesty. The current study casts doubt on that belief," the authors say. The study has implications not only for parenting but also for teaching scenarios and for forensic situations, said Carver: "All sorts of grown-ups may have to re-examine what they say to kids. Even a 'little white lie' might have consequences."

Understanding binge eating, obesity connection Posted: 19 Mar 2014 06:37 AM PDT A new method for evaluating the treatment of obesity-related food behavior has been uncovered by researchers. "We present alternative ways of exploring attitudes to food by using indirect, objective measures -- such as measuring the amount of energy exerted to obtain or view different foods, as well as determining brain responses during the anticipation and consumption of desirable foods," said the lab's principal investigator.

NASA historic Earth images still hold research value Posted: 19 Mar 2014 06:07 AM PDT NASA's Seasat satellite became history long ago, but it left a legacy of images of Earth's ocean, volcanoes, forests and other features that were made by the first synthetic aperture radar ever mounted on a satellite. Potential research uses for the recently released 35-year-old images are outlined in a new paper.

Fast synthesis could boost drug development Posted: 19 Mar 2014 05:55 AM PDT Small protein fragments, also called peptides, are promising as drugs because they can be designed for very specific functions inside living cells. Insulin and the HIV drug Fuzeon are some of the earliest successful examples, and peptide drugs are expected to become a $25 billion market by 2018. However, a major bottleneck has prevented peptide drugs from reaching their full potential: Manufacturing the peptides takes several weeks, making it difficult to obtain large quantities, and to rapidly test their effectiveness. Chemists have now devised a new way to manufacture peptide drugs, which hold promise for treating many diseases.

The power of poison: Study examines pesticide poisoning of Africa's wildlife Posted: 19 Mar 2014 05:55 AM PDT Poisons are silent, effective and cheap, making the especially dangerous in Africa where they are used for both pest control and illegal poaching. However, as a new study reveals, they also kill unintended wildlife.

Football displays fractal dynamics: Real-time dynamics in a football game subject to self-similarity characteristics Posted: 19 Mar 2014 05:54 AM PDT Football fascinates millions of fans, almost all of them unaware that the game is subject to the laws of physics. Despite their seemingly arbitrary decisions, players obey certain rules, as they constantly adjust their positions in relation to their teammates, opponents, the ball and the goal.

Drinking alcohol several times a week increases risk of stroke mortality Posted: 19 Mar 2014 05:54 AM PDT Consuming alcohol more frequently than twice a week increases the risk of stroke mortality in men, according to a study. The results show that the effects of alcohol are not limited to the amount consumed, but also the frequency of drinking matters. Other significant risk factors for stroke include elevated blood pressure, coronary artery disease, heart failure, atrial fibrillation, diabetes, smoking, overweight, asymptomatic carotid artery stenosis, and elevated cholesterol levels.

A majority prefers letting computers decide Posted: 19 Mar 2014 05:54 AM PDT When individuals engage in risky business transactions with each other, they may end up being disappointed. This is why they'd rather leave the decision on how to divvy up jointly-owned monies to a computer than to their business partner. This subconscious strategy seems to help them avoid the negative emotions associated with any breaches of trust, according to a new study.

Earliest evidence of limb bone marrow in the fin of a 370 million year old fish Posted: 19 Mar 2014 05:54 AM PDT The earliest fossil evidence for the presence of bone marrow in the fin of a 370 million-year-old fish. Long bones, which are found in the limb of tetrapods, are not only important for locomotion and supporting the weight of the body, but also host the bone marrow. The latter plays a major role in haematopoiesis, i.e. the formation of blood cells.

Humans drive evolution of conch size Posted: 18 Mar 2014 06:22 PM PDT Scientists found that 7,000 years ago, the Caribbean fighting conch contained 66 percent more meat than its descendants do today. Because of persistent harvesting of the largest conchs, it became advantageous for the animal to mature at a smaller size, resulting in evolutionary change.

Cultural hitchhiking: How social behavior can affect genetic makeup in dolphins Posted: 18 Mar 2014 06:22 PM PDT Researchers studying bottlenose dolphins that use sponges as tools to protect their sensitive beaks has shown that social behavior can shape the genetic makeup of an animal population in the wild. The research on dolphins in Shark Bay in Western Australia is one of the first studies to show this effect -- which is called cultural hitchhiking -- in animals other than people.

Owl monkeys don't cheat: Intensive fathering plays a role Posted: 18 Mar 2014 06:22 PM PDT A new study shows that Azara's owl monkeys (Aotus azarae) are unusually faithful. The investigation of 35 offspring born to 17 owl monkey pairs turned up no evidence of cheating; the male and female monkeys that cared for the young were the infants' true biological parents.

New method is a thousand times more sensitive to performance-enhancing drugs Posted: 18 Mar 2014 06:19 PM PDT While the world's best athletes competed during last month's winter Olympics, doctors and scientists were waging a different battle behind the scenes to make sure no one had an unfair advantage from banned performance-enhancing drugs. Researchers have now unveiled a new weapon — a test for doping compounds that is a thousand times more sensitive than those used today.

Tamiflu reduces risk of death by 25 percent in adults hospitalised with H1N1 pandemic influenza Posted: 18 Mar 2014 04:00 PM PDT Adults hospitalized with H1N1 influenza during the 2009-2010 pandemic were 25 percent less likely to die from the disease if they were given antiviral drugs called neuraminidase inhibitors such as Tamiflu, according to a large meta-analysis involving more than 29,000 patients from 38 countries. The findings also indicate that treatment within 2 days of flu symptoms developing halved the risk of death compared with later treatment or no treatment.

Statin may slow untreatable, progressive stage of multiple sclerosis Posted: 18 Mar 2014 04:00 PM PDT Simvastatin, a cheap cholesterol lowering drug, might be a potential treatment option for the secondary progressive, or chronic, stage of multiple sclerosis, which is currently untreatable, results of a phase 2 study suggest. Findings from the trial showed that a high, daily dose of simvastatin was safe, well tolerated, and slowed brain atrophy (shrinkage) by 43% over two years compared with placebo.

Fried foods may interact with genes to influence body weight, say experts Posted: 18 Mar 2014 04:00 PM PDT Individuals who are genetically predisposed to obesity may be more susceptible to the adverse effects of eating fried foods, concludes a study. The results of a new study show that eating fried food more than four times a week had twice as big an effect on body mass index (BMI) for those with the highest genetic risk scores compared with lower scores. In other words, genetic makeup can inflate the effects of bad diet.

Increased adiposity and reduced physical activity in children: Cause or effect? Posted: 18 Mar 2014 04:00 PM PDT Increased adiposity is likely to cause reduced physical activity in children, according to new research. The results of the study suggest that promoting weight loss in overweight and obese children might also increase childhood activity levels.

Dog DNA has role in developing new therapies for human cancers Posted: 18 Mar 2014 12:49 PM PDT Using genomic analysis to study cancer in dogs can help develop new therapies for humans with cancer, according to a proof-of-concept study underway. Pure-breed dogs, whose genetics have been standardized by hundreds of years of human intervention, provide highly predictable genetic models from which specific drugs are matched to the molecular profiles of human patients. While there are, relatively, many genetic differences among humans with the same type of cancer, there are far fewer genetic differences among dogs of the same breed, making it vastly easier to identify and study the genes driving canine cancers.

New statistical models could lead to better predictions of ocean patterns Posted: 18 Mar 2014 12:49 PM PDT The world's oceans cover more than 72 percent of the earth's surface, impact a major part of the carbon cycle, and contribute to variability in global climate and weather patterns. Now, researchers at the University of Missouri applied complex statistical models to increase the accuracy of ocean forecasting that influences the ways in which forecasters predict long-range events such as El NiDo and the lower levels of the ocean food chain.

Precise reason for health benefits of dark chocolate: Thank hungry gut microbes Posted: 18 Mar 2014 12:47 PM PDT The health benefits of eating dark chocolate have been extolled for centuries, but the exact reason has remained a mystery -- until now. Researchers reported that certain bacteria in the stomach gobble the chocolate and ferment it into anti-inflammatory compounds that are good for the heart.

Building heart tissue that beats: Engineered tissue closely mimics natural heart muscle Posted: 18 Mar 2014 12:47 PM PDT When a heart gets damaged, such as during a major heart attack, there's no easy fix. But scientists working on a way to repair the vital organ have now engineered tissue that closely mimics natural heart muscle that beats, not only in a lab dish but also when implanted into animals.

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