Nathan Wallis unpacks a child's changing brain

Nathan Wallis has been a regular on Nine to Noon over the years, helping parents make sense of what's going on in kids' brains at various developmental stages. From the first vital 1000 days to the unpredictable and sometimes incomprehensible stuff that happens during the teenage years. Nathan's got a new book out called "What were you thinking!?" - the exclamation many parents, caregivers or teachers can make, when trying to decipher what and why kids do what they do. It's packed full of the neuroscience behind their actions - and our reactions to it - and offers some practical advice with humour and warmth.