Don't confiscate the natural heart with an emotional social mantra to lure ancestors away from being all the been since a fertilized cell.
Each human embryonic heart starts beating approximately 21-23 days after fertilization, which is around 5 weeks and 1-2 days gestation. The heart begins to develop as early as 16 days after fertilization.
Ask yourself when did a personal brain start evolving beyond the nucleus of its fertilized cell? Every social mind is developed after birth when the newborn begins to follow context.