(HealthDay News) -- Lifestyle changes such as losing weight, drinking less alcohol and getting more exercise could lead to a substantial reduction in breast cancer cases across an entire population, according to a new model that estimates the impact of these modifiable risk factors.
Although such models are often used to estimate breast cancer risk, they are usually based on things that women can't change, such as a family history of breast cancer. Up to now, there have been few models based on ways women could reduce their risk through changes in their lifestyle.
U.S. National Cancer Institute researchers created the model using data from an Italian study that included more than 5,000 women. The model included three modifiable risk factors (alcohol consumption, physical activity and body mass index) and five risk factors that are difficult or impossible to modify (family history, education, job activity, reproductive characteristics, and biopsy history).
Benchmarks for some lifestyle factors included getting at least 2 hours of exercise a week (for women 30-39) and having a body mass index (BMI) under 25 (in women 50 and older). Read more...
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