Dr. William Blau, emeritus professor and author of Our Genetic Future, explores how modern medicine and environmental changes may be weakening natural selection, with profound consequences for human genetics and future health.

Guest Bio:
Dr. William Blau is an emeritus professor in the Department of Anesthesiology at the University of North Carolina at Chapel Hill. With a background in evolutionary biology and a medical career focused on pain management, Dr. Blau now researches the intersection of genetics, evolution, and public health. He is the author of Our Genetic Future: The Unintended Consequences of Overcoming Natural Selection.

Topics Discussed:

• How modern medicine and technology interrupt natural selection
• Genetic accumulation of harmful mutations in the human population
• Rising rates of disorders like autism, obesity, chronic pain, and declining fertility
• The concept of fitness vs. health in evolutionary biology
• Dysgenic trends and declining intelligence
• Ethical dilemmas around genetic screening and reproductive technologies
• Risks of societal overdependence on medical and technological systems
• Advice for healthy aging and the importance of purpose in later life

Top 3 Quotes:

• “What is good for a single individual’s health may not necessarily be good for society or humankind in the long term.”
• “We have become so out of touch with our own nature as human beings because we currently live in environments so dramatically different than those in which we evolved.”
• “The only real way to correct the situation is to allow natural selection to come back—and no one is seriously suggesting that, for obvious ethical reasons.”

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