Testosterone

and so much more. But there is still a lot of pushback to the idea that it does, in fact, contribute to sex differences and significantly influence behaviour.

Hooven argues that acknowledging testosterone as a potent force in society doesn't reinforce stifling gender norms or patriarchal values. Testosterone and evolution work together to produce a huge variety of human behaviour, and that includes a multitude of ways to be masculine and feminine.

Understanding the science sheds light on how we work and relate to one another, how we express anger and love, and how we fight bias and problematic behaviour to build a fairer society.

'One of the most compelling books on human behaviour I've ever read. Testosterone is a scientific mystery story told with insight, intelligence and panache.' DANIEL GILBERT, Edgar Pierce Professor of Psychology, Harvard University, and author of Stumbling on Happiness

'Hooven makes a compelling case that testosterone is a powerful influence on our bodies and brains. As Testosterone argues, it's hard to make a start on [...] social improvements if we don't fully understand why things are the way they are. Clear-eyed books like this, which mercifully avoid culture-war partisanship, are a great start on that quest.' THE TIMES

'Science writing at its best: intriguing, personal, bold, persuasive, and most importantly, transparent. Her gripping account will fascinate, whether you're a teenager in the throes of puberty or are just curious about the nature of sex and gender - one of the most important debates of our time.' RICHARD WRANGHAM, author of The Goodness Paradox

'A fascinating, brave, and brilliant book - the best I've read on the topic.' STEVE STEWART-WILLIAMS, author of The Ape that Understood the Universe

'A superb and engaging book that delivers the unfiltered truth about testosterone, sex and sex differences, told with clarity and compassion.' DANIEL E. LIEBERMAN, author of Exercised

'With wit and warmth, Hooven lucidly lays out a formidable scientific case for how and why the sexes are different. Boldly confronting contemporary gender issues, Testosterone speaks directly to why getting human nature right matters for making the world a better place.' JOE HENRICH, professor of Human Evolutionary Biology at Harvard University and author of The Secret of Our Success

'An approachable introduction to an often misunderstood aspect of human biology.' Publishers Weekly

'Carole Hooven's account ... is subtle, nuanced, and written with the sure touch of a natural storyteller ...Her commitment to science - to good science - is resolute.' LUKE SLATTERY, WEEKEND AUSTRALIAN