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Exercise Linked to Fertility

NHS Choices,  Nov 9, 2009
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“Gym workouts ‘can hit pregnancy hopes,’” warned the Daily Express today. The newspaper said that a Norwegian study has apparently found that “superwoman workouts” triple the likelihood of fertility problems.

This study found that high-frequency, high-intensity exercise was associated with a risk of infertility. However, the study cannot prove that heavy exercise causes fertility problems, and the authors have been careful not to make this claim in their publication. While the researchers adjusted their analysis to account for the influence of certain other factors, such as age and smoking, they acknowledge that there are limitations to their research. These include an assumption that the participants' physical activity levels remained the same for ten years between their assessments, and a failure to take into account the fertility of male partners. Read more.


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