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Health & MedicineVitamin E Loses Luster: Nutrient tests show disappointing results
In people who have a history of heart disease or diabetes, vitamin E supplements don't improve overall health and might even boost heart-failure risk.
By Nathan Seppa -
HumansStudent Scientists to Watch: With diverse ideas, young talents win big in annual competition
With science projects by 40 of the nation's brightest high school students arrayed before them last week, judges had the task of weighing the merits of undertakings as diverse as the study of deep-sea volcanism and the development of a promising new antibiotic.
By Ben Harder -
Sugar Coated: Molecular dress-up may disguise gut bacteria
The mammalian immune system doesn't attack native gut bacteria as foreign invaders because the bacteria disguise themselves with sugar molecules.