Posted by Chantel M. Research contributed by the US National Library of Medicine National Institutes of Health
The prevalence of childbearing age obesity is wide spreading in US,
approximately, 50% of them are either overweight [body mass index (BMI)
25-29.9 kg/m(2)] or obese (BMI ≥ 30 kg/m(2)).
Body mass index on breast cancer in accordance with the life-stage of women
Epidemiological evidence suggests that the impact of body weight on breast cancer risk should be heterogeneous throughout the life-stage of women. According to the study by the, posted in PubMed, at birth, high weight has been positively associated with an increased risk of breast cancer. While, the body mass index (a relative body weight; BMI kg/m(2)) has been inversely associated with breast cancer
risk among pre-menopausal women. The inverse trend had been observed in
both Western and Asian population, with a relatively lower percentage
of obesity and higher percentage of
leanness, suggested that the inverse trend could be explained not only
by the protective impact due to obesity, but also by the increased risk of breast cancer due to leanness. Among post-menopausal women, however, an elevated BMI has been positively associated with the development of breast cancer, particularly in the cases of estrogen receptor-positive (ER+) and progesterone receptor-positive (PR+) tumors.
Chinese Secrets to Fatty Liver and Obesity Reversal
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