A research team from the University of Utah found that Asian women who drank 200mg of caffeine a day had jacked-up estrogen levels when compared to women who drank less. White women had lower estrogen levels and black women were neutral.
Dr Enrique Schisterman, from the National Institutes of Health said 'We know that variations in estrogen level are associated with such disorders as endometriosis, osteoporosis, and endometrial, breast, and ovarian cancers.'
Breast cancer is the second leading killer among women worldwide and ovarian cancer is a complete death sentence.
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