Dr Michael Carr-Gregg is an adolescent psychologist, a well-respected speaker and one of Australia's leading authorities on teenage behaviour. In 1985 he founded CanTeen, the acclaimed cancer patients' support group for teenagers in New Zealand and Australia. Carr-Gregg has been a regular on Melbourne radio 3AW, the resident parenting expert on Channel 7's Sunrise and a regular on its Morning Show. He has written several bestselling books on parenting, including Surviving Adolescents, The Princess Bitchface Syndrome 2.0, Beyond Cyberbullying and When to Really Worry.