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Weight Loss May Help Drop Your Breast Cancer Risk
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Researchers at the Fred Hutchinson Cancer Research Center have found that a small amount of weight loss could possible reduce some of the risk factors for breast cancer by lowering the estrogen levels in a woman's body. That study is being published to the Journal of Clinical Oncology.

Researchers recruited more than four hundred women, all between the ages of fifty and seventy five and all overweight or obese. Those women were then split into four groups with each group given a different weight loss intervention tool to follow. Group one was asked to diet, the second group added exercise only. Group three was given diet and exercise changes and the fourth group was not asked to make any changes at all. The women who were in group one as well as group three had the greatest successes in their efforts, losing roughly ten percent of their body weight on average. Those groups also had the greatest reduction in their hormones as well. The hormones, including estrogen and its derivatives are the most likely to cause an increased risk in breast cancer. But, while researchers are impressed with the results, they were also quick to add that not all breast cancers are influenced by hormones, including estrogen. Ongoing research is still working on finding a way to reduce risks from those cancers as well, with some suggesting that weight and weight reduction may play a key role in even those cancers.

Estrone dropped nearly ten percent for the dieting only group but nearly twelve percent for those who used both dieting and exercise. Another form of estrogen, estrodiol, dropped just over sixteen percent for the dieters and more than twenty percent for the diet and exercisers. Another hormone, sex hormone binding globulin, also called SHBG also dropped- that hormone is associated with a lowered risk of breast cancer as well. The group with the best results for their weight loss also had the biggest effect on the hormones, decreasing their overall breast cancer by the most.

In 2011, a research study published in the European Journal of Cancer Prevention found that regular exercise of any kind could cut the risk of certain types of breast cancer by as much as forty percent for most women. In that study, more than fifteen hundred women responded to a health and wellness survey that looked at their eating, exercise and lifestyle habits as well as their other risk factors for breast cancer.


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