From
Under the Mantle by Fr. Don Calloway pg. 268:
"Ever heard of fetal
microchimerism? Fetal microcherism describes the process by which the
fetal cells of a child remain in the mother after pregnancy. Science has
recently discovered that when a woman becomes pregnant, there are many
cells from the baby that remain in the mother's body, and some of those living
cells even remain with her for the rest of her life!. Science has also
discovered that cells of the mother are also exchanged with her
children and remain with her children for life... Even if a mother
experiences a miscarriage, living cells of those children too, remain in
her body!
Scientists are of the belief that the cells of a mother's children that
are in the area of an illness in the mother are trying to fight off the
illness and protect the life of the mother!"