Research News on Risk Factors
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New BRCA1 and BRCA2 Test May Be More Accurate, Less Expensive
A group of Canadian scientists has developed a new way to test for abnormal BRCA1 and BRCA2 genes that seems to be more accurate and less expensive than the current testing methods.
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Study Suggests Organic Foods May Not Be More Nutritious, but Also Points Out How Much We Don’t Know
An analysis of 237 studies didn't show that organic foods are substantially healthier than conventionally produced foods, but there were some limitations in the studies that were analyzed.
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Having Dense Breasts Doesn’t Influence Breast Cancer Survival
Research suggests that women with dense breasts have the same breast cancer survival rates as women whose breasts aren't dense.
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Lack of Sleep Linked to Higher Risk of Recurrence of Estrogen-Receptor-Positive Disease in Postmenopausal Women
A small study suggests that not getting enough sleep may be linked to a higher recurrence risk for early-stage, estrogen-receptor-positive breast cancer in postmenopausal women.
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Obese and Overweight Women May Have Higher Risk of Recurrence
A large study suggests that overweight and obese women diagnosed with early-stage, hormone-receptor-positive breast cancer have a higher risk of the cancer coming back and are less likely to survive the disease.
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Genes Associated with Breast Size Also Linked to Breast Cancer
A study found seven pieces of chromosomes that are associated with breast size; three of these also are associated with breast cancer.
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Fertility Drugs Seem to Affect Breast Cancer Risk in Younger Women
A study suggests that women younger than 50 who use fertility drugs to successfully conceive a child may see their risk of breast cancer go up. But this higher risk is about the same as the average woman's risk.
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Daily Exercise – At Any Intensity Level – May Lower Risk
A study has found that women who got about 2 hours of exercise each day -- at any intensity level -- were about 30% less likely to develop breast cancer than women who didn't exercise that much.
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Another Study Suggests Night Work Raises Risk
A French study has found that women who worked the night shift were 35% more likely to be diagnosed with breast cancer compared to women who never worked night shifts.
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Diabetes Medicine Linked to Lower Risk
A large study has found that diabetic women taking the medicine metformin had a lower-than-average-risk of breast cancer.
