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Love that sunny D: Vitamin D may lower your risk of death from disease, reports a study in the Archives of Internal Medicine. Subjects who took an average of 528 IU of vitamin D per day for 5 years had a 7 percent lower risk of death from cancer, cardiovascular disease, and diabetes. The hormone calcitriol, vitamin D's active form, may promote cancer-cell death, says study co-author Sara Gandini, Ph.D. So aim for 400 IU daily.

Photograph by Lucas Visser, styling by Keiko Isayama

Bulletin: Spot on
Magnetic resonance imaging (MRI) may someday eclipse mammograms for breast cancer detection, a study in The Lancet reports. Researchers found that in 167 women with a certain type of breast cancer who had received both a mammogram and an MRI, 56 percent were diagnosed by mammogram, whereas the MRI was accurate for 92 percent of subjects. But few radiologists currently know how to read breast MRIs, says lead author Christiane Kuhl, M.D.