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World's No. 1 Exercise Professor: "Our Comfortable Lives Are Causing Cancer", "The Truth About Running", "Hand Sanitiser Is Making You Sick!

The Diary Of A CEO with Steven Bartlett

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Effects of Menstrual Cycles on Breast Cancer Rates

The number of menstrual cycles a woman goes through in her lifetime is crucial in understanding the risk of breast cancer. Women today may experience around 500 menstrual cycles due to factors like birth control and smaller families, while a typical hunter-gatherer might only have about 50 cycles in her entire life. Each menstrual cycle exposes the body to high levels of hormones, like estrogen and progesterone, which can potentially contribute to increased breast cancer rates. Having a higher number of menstrual cycles could lead to more hormone surges, ultimately impacting the risk of breast cancer.

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