Sax on Sex

The emerging science of sex differences.
by Leonard Sax, MD, PhD

Why So Many Teenage Virgins?

How come fewer teens are having sex today compared with 20 years ago? Read More

Dr. Lise Eliot Evades the Question

There are many errors in the article by Halpern et al. published last week by Science magazine. The point of my essay was to focus on just one category of error, namely the purported harm of single-sex education. I observed that these alleged dangers were based on studies conducted in coed prekindergartens in Tempe, Arizona. Read More

Are Single-Sex Schools Actually DANGEROUS?

Why did SCIENCE publish an article which isn't science, and isn't even true? Read More

Are Women to Blame for the Decline of Men?

Kay Hymowitz has a new book out, titled Manning Up: how the rise of women has turned men into boys. She asks: Why are so many young men today goofing off, while their sisters are working hard to graduate with honors or to advance in the workplace? Read More

Unexpected sex differences in brain development

 Sex differences in the brain are HUGE in childhood - then DIMINISH after the onset of puberty Read More

Are Teen Girls Texting Too Much?

 The average teen girl now sends 4,050 text messages a month. Read More

Underage girls dancing onstage in lingerie

7-, 8-, and 9-year old girls danced to8-year-old girls dancing onstage in lingerie. . . well, what's wrong with that? Read More

Why Are So Many Girls Lesbian or Bisexual?

Lindsay Lohan is one of many celebrity women who want us to know that they go both ways.  Why are girls today more likely than boys to be non-heterosexual? Read More

Why are so many girls cutting themselves?

Megan Fox told Rolling Stone magazine that she had cut herself as a teenager. The proportion of girls who are cutting themselves is growing fast. How come? Read More

Leonard Sax, MD, PhD

Leonard Sax, M.D., Ph.D., is a family physician, PhD psychologist, and author of Boys Adrift and Girls on the Edge.

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Books by Leonard Sax, M.D., Ph.D.

Image of Boys Adrift: The Five Factors Driving the Growing Epidemic of Unmotivated Boys and Underachieving Young Men
Boys Adrift: The Five Factors Driving the Growing Epidemic of Unmotivated Boys and Underachieving Young Men
Image of Girls on the Edge: The Four Factors Driving the New Crisis for Girls-Sexual Identity, the Cyberbubble, Obsessions, Environmental Toxins
Girls on the Edge: The Four Factors Driving the New Crisis for Girls-Sexual Identity, the Cyberbubble, Obsessions, Environmental Toxins