Foundations of human personhood. Being, person and human nature -- The biological dimension of human personhood -- The psychological dimension of human personhood -- Person as a psychosomatic unity -- The relational dimension of human personhood -- The temporal and eschatological dimensions -- Assisted reproductive technologies and personhood. Infertility and the need for assisted reproductive technologies -- Artificial insemination -- In vitro fertilization and embryo transfer -- Surrogate gestational motherhood -- Manipulation of embryos -- Human cloning and stem cells -- The human genome project -- Abortion and personhood. The two extreme positions -- Moderation of the extreme positions via considerations of the pregnant woman's rights -- Moderation of the extreme positions via re-evaluation of the moral status of the fetus -- Consideration of pragmatic factors -- Prenatal screening and fetal genetic defects -- Medical technology innovations and the status of the unborn.