Researchers

On Monday, researchers at the Harvard School of Public Health released study results showing that red meat consumption was associated with a higher risk of early death. The more red meat -- beef, pork or lamb, for the purposes of the research -- study participants reported they ate, the more likely they were to die during the period of time that data collection took place (more than 20 years). So what is it in red meat that might make it unhealthy?   No one is sure, exactly, but the authors of the Harvard study mention a few possible culprits in their paper in the Archives of Internal Medicine .   First, eating red meat has been linked to the incidence of heart disease.  The saturated fat and cholesterol in beef, pork and lamb are believed to play a role in the risk of coronary heart disease .  The type of iron found in red meat, known as heme iron, has also been linked to heart attacks and fatal heart disease.  Sodium in processed meats may increase blood pressure, which is a risk factor for heart disease. Other chemicals that are used in processed meats may play a role in heart disease as well, by damaging blood vessels.

Scientists dissecting the remains of the disastrous 1980 explosion of Mt. St. Helens in Washington state say that crystal formations trapped in volcanic rocks hold important clues about when a magma-loaded mountain is about to blow - a discovery that could help volcanologists make more accurate predictions about future eruptions. The findings, published in Friday's edition of the journal Science, link the movement of underground magma to earthquakes, gas emissions and other warning signs that are more accessible to experts who monitor active volcanoes above ground.

In an age of long commutes, late sports practices, endless workdays and 24/7 television programming, the image of Mom hanging up her dish towel at 7 p.m. and declaring "the kitchen is closed" seems a quaint relic of an earlier era. It also harks back to a thinner America. And that may be no coincidence. A new study, conducted on mice, hints at an unexpected contributor to the nation's epidemic of obesity - and, if later human studies bear it out, a possible way to have our cake and eat it too, with less risk of weight gain and the diseases that come with it. Just eat your cake - or better yet, an apple - earlier.

Surgical residents were more fatigued than expected, especially on night rotations, according to a new study. A quarter of their waking time, they were the equivalent of being legally drunk, the study said. “Our fatigue levels were higher than we thought, but that allows us to focus on where the problems are likely to be,” Frank McCormick, a doctor from the Harvard Combined Orthopedic Residency Program and the lead researcher, said by telephone. The study, published Monday in the journal Archives of Surgery, did not measure actual harm to patients from fatigue, just potential, he said.

WASHINGTON - Hall of Fame quarterback Joe Montana said they improved his strength and posture. Celebrity Kim Kardashian boasted they allowed her to ditch her personal trainer. But federal and state officials said the rocker-bottom Shape-ups and other toning shoes made by Skechers USA Inc. don't live up to the hype from the company and its high-profile endorsers. On Wednesday, the Manhattan Beach company agreed to pay $50 million to settle false-advertising allegations by the Federal Trade Commission and the attorneys general of 44 states, including California, as well as the District of Columbia.

Researchers have some reassuring news for the legions of coffee drinkers who can't get through the day without a latte, cappuccino, iced mocha, double-shot of espresso or a plain old cuppa joe: That coffee habit may help you live longer. A new study that tracked the health and coffee consumption of more than 400,000 older adults for nearly 14 years found that java drinkers were less likely to die during the study than their counterparts who eschewed the brew. In fact, men and women who averaged four or five cups of coffee per day had the lowest risk of death, according to a report in Thursday's edition of the New England Journal of Medicine.

It was evidently good enough for Gilligan and Robinson Crusoe. But is coconut water a healthy choice for people who aren't stranded on a deserted island? A longstanding treat in tropical regions across the globe, coconut water hit U.S. supermarkets a few years back and is now being marketed with a vengeance. Sometimes billed as nature's sports drink, the slightly sour beverage has also acquired a reputation for being able to improve circulation, slow aging, fight viruses, boost immunity, and reduce the risk of cancer, heart disease and stroke.

A new study showing an estimated 7% of American teens and adults carry the human papillomavirus in their mouths may help health experts finally understand why rates of mouth and throat cancer have been climbing for nearly 25 years. The evidence makes it clear that oral sex practices play a key role in transmission. The new data, published online Thursday by the Journal of the American Medical Assn., are the first to assess the prevalence of oral HPV infection in the U.S. population.

Teas from across the globe are becoming more and more popular in the U.S. One relative newcomer, yerba mate, is attracting fans for its allegedly jitter-free caffeine boost and high antioxidant content. Lab research suggests some potential health benefits from drinking yerba mate, but studies of lifelong yerba mate drinkers in the tea's native South America suggest the brew increases the risk of some cancers -- a fact most marketing campaigns omit.

Rats fed fructose-laced drinking water for six weeks performed more slowly in a maze-navigating task, UCLA researchers have found. (Read this L.A. Times opinion article .) They think the effect is due to changes in the way the brain responds to insulin as a result of exposure to fructose. “Our study shows that a high fructose diet harms the brain as well as the body,” study senior author and UCLA professor Fernando Gomez-Pinilla said in a release about the finding, which was published in the Journal of Physiology (postdoc Rahul Agrawal was first author)

Excavating in a coal mine in Colombia, paleontologists have discovered the fossil of the world's largest turtle, a 60-million-year-old specimen nearly 8 feet long -- the size of a Smart car. Thriving in a lake about 5 million years after the demise of the dinosaurs, the turtle was undoubtedly the largest predator in its environment, researchers say.

At any one time, hundreds of clinical trials are underway in the U.S. to test simpler and more effective ways to treat and prevent HIV infection, which afflicts more than 1 million people in this country. Most of those in the U.S. with HIV - and with AIDs in its full-blown stage - are men. So, understandably, men make up the majority of the participants in the trials. However, women, who account for 25% of those living with HIV in the U.S., are significantly underrepresented in clinical trials, according to infectious disease researchers and health professionals who have studied this issue.

We're fat, in case you hadn't heard. And as we learned last week, 42% of American adults will be obese by 2030, according to researchers at the Weight of the Nation conference sponsored by the Centers for Disease Control and Prevention. If that's a party you'd rather miss, the grocery store is a place to start. Nutritionists often advise us to buy fresh food and stick to the perimeters of the store (instead of the middle aisles that are stocked with Oreos, Doritos and Froot Loops)

Researchers have some reassuring news for the legions of coffee drinkers who can't get through the day without a latte, cappuccino, iced mocha, double-shot of espresso or a plain old cuppa joe: That coffee habit may help you live longer. A new study that tracked the health and coffee consumption of more than 400,000 older adults for nearly 14 years found that java drinkers were less likely to die during the study than their counterparts who eschewed the brew. In fact, men and women who averaged four or five cups of coffee per day had the lowest risk of death, according to a report in Thursday's edition of the New England Journal of Medicine.

UC Santa Barbara, according to old stereotypes, may still conjure up the image of a lush campus by the beach, where students can squeeze in a few hours of surfing after class and live in a nearby neighborhood that is one of the nation's best-known party zones. But in reality, UC Santa Barbara over the last three decades increasingly has become a center of scientific research, and its move in that direction was strengthened Saturday with the announcement of a $50-million private donation to energy efficiency research and engineering programs.

Every morning when UC San Diego physicist Herbert Levine laces up his running shoes and chugs alongside Mission Bay, his earphones crackle with radio ads opposing a proposed $1-per-pack cigarette tax to raise money for cancer research. The ads are funded by the tobacco industry. They call Proposition 29, the tobacco tax that state voters will consider on the June 5 ballot, a bureaucratic boondoggle, an initiative that would raise mountains of cash for research but not a penny for treatment.

For patients with high levels of so-called bad cholesterol, doctors routinely reach for two remedies: cholesterol-lowering statin drugs and a diet that cuts out foods high in saturated fat, such as ice cream, red meat and butter. But new research has found that when it comes to lowering artery-clogging cholesterol, what you eat may be more important than what you don't eat. Released online Tuesday in the Journal of the American Medical Assn., the study found that incorporating several cholesterol-lowering foods — such as soy protein and nuts — into a diet can reduce bad cholesterol far more effectively than a diet low in saturated fat. In fact, the authors assert, levels of LDL, the "bad" cholesterol, can drop to half that seen by many patients who take statins, sold under such names as Lipitor, Crestor or Zocor.

In a potential breakthrough in cancer research, scientists at the University of Pennsylvania have genetically engineered patients' T cells — a type of white blood cell — to attack cancer cells in advanced cases of a common type of leukemia. Two of the three patients who received doses of the designer T cells in a clinical trial have remained cancer-free for more than a year, the researchers said. Experts not connected with the trial said the feat was important because it suggested that T cells could be tweaked to kill a range of cancers, including ones of the blood, breast and colon.

Chances are, if you're out and about, you'll pass by an automated external defibrillator, or AED.  The machines, which check the heart's rhythm and can deliver a shock to restore the heartbeat to normal, are scattered about public places so that bystanders can deliver a jump-start to people experiencing sudden cardiac arrest, keeping the heart going until the patient can make it to a medical facility for treatment.  But two studies presented...

Thanks to a new method of modeling earthquakes, scientists may now understand why the Parkfield segment of the San Andreas fault - a carefully studied region known for producing moderate temblors every 20 years or so - has been behaving unexpectedly since around the time Ronald Reagan was in the White House. Taking data collected by sensors on the ground and in space and combining them with observations from laboratory physics experiments, Caltech researchers conducted a computer simulation of tectonic events at Parkfield and discovered that a series of small quakes there may have staved off a larger shaker that geologists predicted would occur in the late 1980s or early 1990s.