Technologies such as direct-to-consumer genetic testing, pharmacogenetically developed therapies in cancer care, private umbilical cord blood banking, and neurocognitive enhancement claim to cater to an individual's specific biological character, and, in some cases, these technologies have shown powerful potential. Yet in others they have produced negligible or even negative results. Donna Dickenson examines the economic and political factors fueling the Me Medicine phenomenon and explores how, over time, this paradigm shift in how we approach our health might damage our individual and collective well-being. Drawing on the latest findings from leading scientists, social scientists, and political analysts, she critically examines four possible hypotheses driving the Me Medicine moment: a growing sense of threat; a wave of patient narcissism; corporate interests driving new niche markets; and the dominance of personal choice as a cultural value. She concludes with insights from political theory that emphasize a conception of the commons and the steps we can take to restore its value to modern biotechnology.