Most cases of breast cancer are related to lifestyle or environment,but exactly which factors affect the risk of breast cancer isdifficult to define. The preponderance of breast cancer in womenas opposed to men, the reproductive patterns common to womenin whom breast cancer develops (early menarche, late menopause,low parity and delayed childbearing, and short duration of lactation),and the increased risk associated with obesity (particularlytruncal obesity) suggest that female hormones or metabolismcontributes to the cause of breast cancer. There has been recentinterest in the possibility that endogenous sex hormones inpremenopausal and postmenopausal . . . [Full Text of this Article]
References
Related Letters:
Exercise and Breast Cancer
Berger A., Bodian C. A., Jackson J. A., Woloshin S., Schwartz L., Goldenberg K., Thune I., Lund E.
Extract |
Full Text
N Engl J Med 1997;
337:708-709, Sep 4, 1997.
Correspondence
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