ストレスのある女性は妊娠しにくい　

1999/6/25　ロイター　デンマークの研究によると、ストレスのある女性、特に月経周期が35日以上の長い女性は妊娠しにくいし、流産率も高いという。

Stress may reduce fertility in women

NEW YORK, Jun 25 (Reuters Health) -- Healthy women with long menstrual cycles who are under stress are less likely to become pregnant in a certain time period compared with their stress-free counterparts, a team of Danish researchers reports in the July issue of Fertility and Sterility.
Overall, pregnancy occurred in 59% of women in a 6-month period, although women with stress scores in the top 20% who also had 35-day or longer menstrual cycles were less likely to become pregnant than those with lower stress scores, or those with high stress scores but shorter menstrual periods.
Compared with women who had cycles less than 35 days and low stress scores, women who had long cycles and high stress scores had a 12-fold higher risk of experiencing early embryonal loss, where pregnancy tests are briefly positive.
The study included 393 couples attempting their first pregnancy who had no known fertility problems, reported Dr. Niels Henrik I. Hjollund, of Aarhus University Hospital in Aarhus, Denmark, and colleagues.
``Thus, we excluded couples who had a potentially raised level of distress caused by unsuccessful attempts to conceive,'' the authors write.
Both partners filled out questionnaires on fatigue, anxiety and depression, and women provided urine samples on days 1 to 10 of each menstrual cycle. Pregnancy tests suggested there was early loss of pregnancy in 32 of the 1,475 menstrual cycles studied, with stressed-out women more likely to miscarry early in pregnancy.
``Psychological distress may be a risk factor for reduced fertility in women with long menstrual cycles,'' Hjollund and his team comment.
SOURCE: Fertility and Sterility 1999;72:47-53.