6. 不要吸煙
吸煙不僅會引致肺癌，還有其他健康風險，包括是患乳癌。2017年發表的一項研究指出 [7]，香煙中的致癌物誘發乳癌，尤其是對於在年少時已吸煙的人來說，風險更加高，或因在乳房發育時期，香煙影響荷爾蒙的化學反應。
資料來源：
TIME
文獻參考：
[1] Farvid, M. S., Chen, W. Y., Michels, K. B., Cho, E., Willett, W. C., & Eliassen, A. H. (2016). Fruit and vegetable consumption in adolescence and early adulthood and risk of breast cancer: population based cohort study. bmj, 353, i2343.
[2] Menopausal Hormone Therapy and Cancer Risk, American Cancer Society, Retrieved from https://www.cancer.org/cancer/cancer-causes/medical-treatments/menopausal-hormone-replacement-therapy-and-cancer-risk.html
[3]Williams, L. A., Olshan, A. F., Hong, C. C., Bandera, E. V., Rosenberg, L., Cheng, T. Y. D., ... & Palmer, J. R. (2017). Alcohol Intake and Breast Cancer Risk in African American Women from the AMBER Consortium. Cancer Epidemiology and Prevention Biomarkers.
[4] Cao, Y., Willett, W. C., Rimm, E. B., Stampfer, M. J., & Giovannucci, E. L. (2015). Light to moderate intake of alcohol, drinking patterns, and risk of cancer: results from two prospective US cohort studies. Bmj, 351, h4238.
[5] Friedenreich, C. M., Neilson, H. K., O’reilly, R., Duha, A., Yasui, Y., Morielli, A. R., ... & Courneya, K. S. (2015). Effects of a high vs moderate volume of aerobic exercise on adiposity outcomes in postmenopausal women: a randomized clinical trial. JAMA oncology, 1(6), 766-776.
[6] Chlebowski, R. T., Aragaki, A. K., Anderson, G. L., Simon, M. S., Manson, J. E., Neuhouser, M. L., ... & Qi, L. (2018). Association of Low-Fat Dietary Pattern With Breast Cancer Overall Survival: A Secondary Analysis of the Women’s Health Initiative Randomized Clinical Trial. JAMA oncology, e181212-e181212.
[7] Jones, M. E., Schoemaker, M. J., Wright, L. B., Ashworth, A., & Swerdlow, A. J. (2017). Smoking and risk of breast cancer in the Generations Study cohort. Breast Cancer Research, 19(1), 118.
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