You may see little bits of yourself or your partner in your baby: Maybe he has your eyes, or his dad’s nose. But did you know that your little babe is also a part of you?
Scientists have found fetal cells in mothers’ bodies post-birth, including fetal cells in a mother’s brain, heart and kidneys. While this has been confirmed in humans, studies that began in female mice showed that the fetal cells that ended up in mothers’ hearts developed into cardiac tissue—and became actual beating heart cells.