If you want your daughter to do better in science, get her exercising, says a paper in the British Journal of Sports Medicine. All teens benefit, girls more. The improvements were sustained over the long term, with the findings pointing to a dose-response effect—the more intensive exercise was taken, the greater the impact on test results.

They base their findings on a representative sample of almost 5,000 children who were all part of the Children of the 90s study, also known as the Avon Longitudinal Study of Parents and Children (ALSPAC). This is tracking the long term health of around 14,000 children born in the U.K. between 1991 and 1992 in the South West of England.

Active camouflage update. In a Harvard School of Engineering laboratory test, a team of applied physicists placed a device  with a new coating that intrinsically conceals its own temperature to thermal cameras on a hot plate and watched it through an infrared camera as the temperature rose.

Initially, it behaved as expected, giving off more infrared light as the sample was heated: at 60 degrees Celsius it appeared blue-green to the camera; by 70 degrees it was red and yellow. At 74 degrees it turned a deep red—and then something strange happened. The thermal radiation plummeted. At 80 degrees it looked blue, as if it could be 60 degrees, and at 85 it looked even colder. Moreover, the effect was reversible and repeatable, many times over.

There's a reason why organic food sickens far more people than conventional produce; a lack of science in agricultural practices.

Researchers have identified some agricultural management practices in the field that can either boost or reduce the risk of contamination in produce from two major foodborne pathogens: salmonella, the biggest single killer among the foodborne microbes, and Listeria monocytogenes. 

Oxygen was essential for advanced life to evolve; ancient dinosaurs and modern large-brained mammals needed a lot of oxygen to keep their large and sophisticated organisms running.   Some simple organisms like bacteria can survive without oxygen, but all higher organisms need it our atmosphere's 21 percent oxygen is essential for the human brain to function. 

So why did life not explode when oxygen levels rose dramatically 2.1 billion years ago? The oxygen content 2.1 billion years ago was probably the same as when life exploded around 542 million years ago - the Cambrian explosion, where oxygen levels rose to up to 10 pct. Before that life consisted of small and simple, typically single-celled life forms.

Lifestyle programs focused on high-intensity interval training or the Mediterranean diet have shown results for improving the heart health of people with abdominal obesity, finds a new study.

"Each of these lifestyle interventions alone is known to have an impact, but no one has studied them together in a longer term," says Dr. Mathieu Gayda, one of the study's authors and an exercise physiologist at the Montreal Heart Institute. "Our results show that the combination of the two interventions supersized the benefits to heart health."

The heart health benefits included significant improvements in body fat mass, cholesterol and blood pressure levels, exercise capacity, muscle endurance, weight loss, waist circumference, resting heart rate and blood sugar control.

Some of the more recent dramatic disasters in world-wide markets have occurred, not because people panicked or an election did not go someone's way, but because financial institutions have taken to hiring physicists who wrote papers on predicting chaos.

If non-linear is just linear in really small steps, then predicting and controlling nonlinearity is manageable. But those extreme chaotic events, the "dragon kings", have not obeyed numerical models yet.

An upcoming paper in Physical Review Letters seeks to tame that savage chaotic breast again, with a simple model of chaos predicting that it is possible not only to predict an extreme event, like a stock market collapse, but to intervene and prevent it from happening.

A new paper has found a significant association between low dietary fiber intake and cardiometabolic risks including metabolic syndrome, cardiovascular inflammation, and obesity.

 In the study, investigators used surveillance data from 23,168 subjects in the National Health and Nutrition Examination Survey (NHANES) 1999-2010  to examine the role dietary fiber plays in heart health, coupled with possible sex, age, racial/ethnic, and socioeconomic disparities in dietary fiber consumption. They also examined the association between dietary fiber intake and various cardiometabolic risk factors.