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Leonard Sax Author "The Collapse of Parenting", Physician, and Psychologist

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Select Keynotes

  • Evidence-Based Parenting
  • Beyond Resilience
  • Why Gender Matters – For Parents
  • TikTok Ate My Daughter, and My Son Won't Stop Playing Video Games
  • Boys Adrift

Select Book Titles

  • 2017 The Collapse of Parenting: How We Hurt Our Kids When We Treat Them Like Grown-Ups
  • 2016 Boys Adrift: The Five Factors Driving the Growing Epidemic of Unmotivated Boys and Underachieving Young Men
  • 2011 Girls on the Edge: The Four Factors Driving the New Crisis for Girls--Sexual Identity, the Cyberbubble, Obsessions, Environmental Toxins
  • 2006 Why Gender Matters: What Parents and Teachers Need to Know about the Emerging Science of Sex Differences

Education & Training

Dr. Leonard Sax MD PhD attended public schools in Shaker Heights Ohio from kindergarten through grade 12. He enrolled in the Massachusetts Institute of Technology (MIT) in Cambridge Massachusetts in the fall of 1977; he graduated Phi Beta Kappa from MIT in January 1980, at the age of 19. He then went on to the University of Pennsylvania, where he earned both a PhD in psychology, and an MD. He did a three-year residency in family medicine in Lancaster Pennsylvania. Dr. Sax has been continuously certified by the American Board of Family Medicine since 1989.


In March 1990, Dr. Sax launched a primary care medical practice in Montgomery County Maryland. From 1990 through 2008, Dr. Sax provided primary care to children and adults. In 2001, Dr. Sax began visiting schools and speaking to parents. In 2005, Doubleday published his first book Why Gender Matters; an updated second edition was published in 2017. In 2007, Basic Books published his second book Boys Adrift; an updated second edition was published in 2016. In 2010, Basic Books published his third book Girls on the Edge; an updated second edition was published in 2020. In December 2015, Basic Books published his fourth book The Collapse of Parenting, which became a New York Times bestseller.

Dr. Sax has spoken on issues of child and adolescent development not only in the United States but also in Australia, Bermuda, Canada, England, Germany, Italy, Mexico, New Zealand, Scotland, Spain, and Switzerland. Since 2001, he has visited and worked with more than 460 schools, universities, juvenile justice facilities, communities of faith, pre-Ks and nursery schools, corporations, community groups and parent groups. He has appeared on the TODAY Show, CNN, National Public Radio, PBS, Fox News, Fox Business, the Canadian Broadcasting Corporation, the British Broadcasting Corporation, the Australian Broadcasting Corporation, New Zealand Television, and many other national and international media.

Dr. Sax lives with his wife and daughter in Chester County, Pennsylvania, where he also sees patients. He continues to lead workshops for teachers, parents, juvenile justice professionals, communities of faith, corporations, physicians, psychologists, social workers, and other professionals who work with children and teenagers.

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