Fetal Microchimerism and Pregnancy

Fetal Microchimerism and Pregnancy

Smithsonian Magazine published an article on scientific research showing that becoming pregnant literally shapes a mother’s heart and mind. The scientific name for this is “fetal microchimerism.” The study shows amazing changes in a woman’s body and mind when she becomes pregnant. These include:

1) The mother regrows heart cells in the same way a salamander grows a new tail.
2) The DNA in new heart cells does not match the mother’s DNA.
3) The new heart cells travel to any damaged part of the mother’s heart.
4) Fetal stem cells transform into blood-vessel-like tubes and heart muscle cells in the mother.
5) Fetal cells not used in the mother’s heart show up in the mother’s lungs, spleen, kidneys, thyroid, skin, and bone marrow.
6) Fetal cells stay with the mother for life. Scientists find fetal cells in the corpses of older women with grown children.
7) Women with three or more kids have a 12% lower risk of dementia.
8) During the first month of motherhood, a woman is 23 times more likely to have her first hospitalization for bipolar disorder than at any other time in her life.
9) New mothers show significantly greater activity in the brain’s thalamus, which regulates consciousness, sleep, and alertness.
10) When observing distressed babies, mothers show unusual electrical brain activity.
11) Mothers have an oxytocin rush into the bloodstream during labor and delivery, facilitating uterine contractions and milk letdown. There is evidence that oxytocin is also a neurotransmitter stimulating a mother’s concern for infants.


When God designed women to give birth to babies, He didn’t just set up a chamber where the baby could grow. He also built into the conception process a system that benefits the mother and the child. Fetal microchimerism means that fetal cells from the baby remain in the mother’s body and affect her in various ways. Can you imagine what an abortion does to this system?

Science is just beginning to understand the complexities of this design. The process of abortion has long-term effects on the mother. The more we learn, the more obvious it becomes that abortion is not only the murder of an innocent baby, but it has collateral damage to the mother.

— John N. Clayton © 2021

Reference: Smithsonian Magazine (May 2021, pages 50-57)