👶One in six couples worldwide struggles with fertility. In the United States, that number is closer to one in two. Dr. Ann Shippy has spent 20 years watching this crisis unfold in her practice, and she has written the book she wishes she had before she had her own children.

"The Preconception Revolution" makes the case that the window before conception is one of the most consequential periods in a human life, and that what parents do during that time shapes not just whether they conceive, but the long-term health trajectory of the child they bring into the world.

The science behind it is epigenetics, the field that has established how the environment we bathe our genes in determines how those genes behave. That field has exploded in the last eight years, and what it is revealing about fertility, autism, neurological development, diabetes, obesity, and autoimmunity is changing what is possible in the preconception period.

Dr. Shippy joins Del to discuss what she has learned, what her patients have taught her, and what every person thinking about having a child in the modern world needs to understand before they start trying.

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