d to an increased frequency of ovulation. Scientists have hypothesised that after each ovulation, there is a proliferation and repair of ovarian cells, which leads to recurrent minor trauma. Therefore, with more ovulatory cycles, there is an increased risk of developing ovarian cancer.
Chionh said that, alone, the findings should not alter current recommendations for exercise, given the evidence that physical activity reduces the risk of more common cancers, obesity, heart disease, stroke and death from all causes. She said that a meta-analysis, which statistically combines results from multiple studies, could help clarify the effect of physical activity on ovarian cancer risk.
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