A study of the integration of the fields of biology and technology examines the cutting-edge breakthroughs that can transform the human race, analyzing the ethical dilemmas posed by twenty-first-century science.

Introduction. Healing and enhancing -- 1. Choosing our bodies -- 2. Choosing our minds -- 3. Created equal -- 4. Methuselah's genes -- 5. Choosing our life spans -- 8. Methuselah's world -- 7. A child of one's own -- 8. A child of choice -- 9. The wired brain -- 10. World wide mind -- 11. Life without limits.