A radical exploration of how fatherhood transforms men's brains, bodies, health, skills, and relationships. In recent years, men's attitudes towards fatherhood have changed dramatically. But now we are beginning to learn how deeply fatherhood changes the brains and biology of men – and the effects of these changes on their health, skills, relationships, and sense of purpose. In Dad Brain, one of the leading researchers on fatherhood, Darby Saxbe, provides a fascinating narrative of this new science, full of insights into how different approaches to fatherhood affect not only men but the entire family. Among the many revelations are that:

• Fathers' brains shrink and their testosterone decreases
• Fathers undergo a series of hormonal changes previously thought to affect only women
• Fathers can suffer from postpartum depression but enjoy better long-term health
• Fathers are better managers and their way of playing makes their children more resilient
• In the West, fathers usually sleep less than mothers, but mothers sleep worse than fathers
• Dads who do more housework are generally happier
• The majority of women prefer “dad bods”

Above all, Dad Brain shows that men are programmed to participate in caregiving just as much as women, but many of these adjustments are activated only when fathers invest time and practice in fatherhood. The more they do, the more their brains and bodies change, the better they become at it. Ultimately, it shows that being a good father is not something you are, it’s something you become.

‘Fun and fascinating… a must-read’ Eve Rodsky

‘A wonderful edition… by an acclaimed scientist’ Antonio Damasio

‘Masterful, packed with science, offering unique and practical information’ Daniel J. Siegel