10 Fertility Myths: Fact or Fiction with guest Emily Oster

·23 min·2 clips

Emily Oster reveals that a glass of wine during the two-week wait doesn't impact conception, debunking a major fertility myth.

The episode begins with Dr. Aimee Eyvazzadeh introducing Emily Oster, an economist and author known for data-driven insights on pregnancy and fertility. Oster explains the mission of her platform ParentData, which provides evidence-based information to help people make their own best decisions. The first myth addressed is about giving up alcohol when trying to conceive, with Oster noting that moderate drinking during the two-week wait doesn't impact conception, though binge drinking can. Next, they discuss caffeine, with research showing no link to infertility, and Oster highlights how self-blame often leads to unnecessary restrictions. The myth of exact sex timing is debunked, revealing a two-day window around ovulation for highest conception chances. Stress is examined, with studies showing only small effects from extreme stress, and Oster advises stress management rather than blaming stress for fertility issues. The guideline of waiting a year to see a fertility specialist is questioned, with Oster suggesting personalized timelines based on effort and age. Cycle variability is explored, noting normal ranges from 21 to 35 days and inconsistent ovulation timing. Age-related fertility decline is discussed, emphasizing gradual changes rather than sharp drops at specific ages. Male fertility myths are covered, including declines with age and the impact of factors like tight underwear or saunas on sperm quality. Oster explains that semen analysis doesn't guarantee fertility, as other factors like genetics play a role. The conversation shifts to how ParentData supports fertility journeys through education on menstrual cycles and treatment options. Oster mentions expanding content for diverse family-building methods, such as using sperm donors or surrogacy. The episode concludes with resources for listeners to access ParentData and Oster's work.

As heard by us

A clear, data-minded look at fertility rules, cycle variation, and when a doctor check-in may make sense.

Fertility advice often lands as a rule, but this episode is more interested in what those rules can really tell someone trying to conceive. Emily Oster, an economist, author, and Brown University professor, looks at common guidance around fertility and pregnancy, then makes the…

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If fertility rules are starting to sound like laws, press play for a data-minded reality check.

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