Kids' high salt consumption is putting them at risk for illnesses linked to high blood pressure. The association between salt and blood pressure was highest in kids who are already overweight, the CDC says.
Teachers' expectations about their students' abilities affect classroom interactions in myriad ways that can impact student performance. Students expected to succeed, for example, get more time to answer questions and more specific feedback. But training aimed at changing teaching behavior can also help change expectations.
People with stressful jobs had a 23 percent higher risk of heart attack than those whose jobs weren't pressure cookers. A stressful job has to combine intense demands and little control over decisions about the work.
Reporting in Science Translational Medicine, researchers write that healthy sinuses are populated by a diverse population of bacteria, including Lactobacillus species. Study author Susan Lynch discusses whether a microbial spray might be a good cure for the sniffles.
As more people get interested in managing their own health and experimenting with new diets, some are testing their cholesterol on their own, and posting results in online forums where they get feedback on how to improve their scores.
Enlisting nomadic African herders finally helped the world eliminate the cattle plague rinderpest. But the veterinarians, who had the power to shut the program down, had to be rewarded for success, too.
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