News
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Health & MedicineSunshine vitamin diminishes risk of colds, flu
A study of nearly 19,000 adults shows that people with low levels of vitamin D are more likely to develop colds, flu and pneumonia.
By Janet Raloff -
Health & MedicineBreast cancer drug gets boost
Natural protein could make the most aggressive breast cancers vulnerable tamoxifen, and may even prevent the cancer’s spread.
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Health & MedicineTaking age stereotypes to heart
A long-term investigation indicates that young and middle-aged adults who hold negative attitudes about the elderly are more likely to have heart ailments and strokes later in life.
By Bruce Bower -
SpaceSatellite collision: brief update on Hubble and debris
In an unprecedented collision, two large satellites crashed into each other in low-Earth orbit on February 10.