Leonard Sax

Leonard Sax MD PhD graduated Phi Beta Kappa from the Massachusetts Institute of Technology (MIT) at the age of 19, and then went on to the University of Pennsylvania, where he earned both a PhD in psychology, and an MD. He completed a 3-year residency in family practice in Lancaster, Pennsylvania. For 19 years, Dr. Sax was a practicing family physician in Maryland, just outside Washington DC. In 2005, Doubleday published his first book Why Gender Matters; an updated edition was published in August 2017. His second book, Boys Adrift, was published in 2007; an updated edition was published in June 2016. His third book Girls on the Edge was published in 2010; an updated edition was published in August 2020. His fourth book The Collapse of Parenting was published by Basic Books in December 2015 and became a New York Times bestseller. An updated edition was published in October 2024. 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. He has visited more than 500 schools since 2001. He has appeared on the TODAY Show, CNN, National Public Radio, Fox News, PBS, the Canadian Broadcasting Corporation, the British Broadcasting Corporation, and many other national and international media. His books have been translated into ten languages. Dr. Sax now lives with his wife and daughter in Chester County, Pennsylvania. He returned to clinical practice, in Pennsylvania, in 2013, where he continues to see patients while still leading workshops, and writing. You can reach Dr. Sax directly, and sign up for his monthly e-newsletter, via his web site.