Stress negatively affects chances of conception

"What many have long suspected, has been scientifically confirmed -- women's high stress reduces their probability of conception.

University of Louisville School of Public Health and Information Sciences epidemiologist Kira Taylor, Ph.D., and her UofL and Emory University colleagues, found that women who reported feeling more stressed during their ovulatory window were approximately 40-percent less likely to conceive during that month than other less stressful months. Similarly, women who generally reported feeling more stressed than other women, were about 45-percent less likely to conceive. The results of the study recently published in the journal Annals of Epidemiology.

In the study, 400 women 40-years-old and younger who were sexually active recorded their daily stress levels measured on a scale from one to four (low to high). The diaries also contained information regarding menstruation, intercourse, contraception, alcohol, caffeine and smoking. Urine samples also were collected throughout the study, and women were followed until they became pregnant or until the study ended, for an average of eight menstrual cycles..."

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https://www.sciencedaily.com/releases/2016/09/160912161019.htm