Duchess of Cambridge on mental illness: 'It's OK to ask for help'

Kate Middleton has spoken out against poor mental health in children.

The Duchess of Cambridge gave a moving speech to parents and guardians, encouraging them to give mental problems the same treatment as physical injuries.

"Without support, the effects of these challenges can be traumatic leading to serious issues such as anxiety, depression, addiction and self-harm."

Speaking passionately about the need to treat mental illness early on, Middleton - who is mother to Prince George - promoted the work of charity Place2Be.

"A child's mental health is just as important as their physical health and deserves the same quality of support," she said. "William and I sincerely believe that early action can prevent problems in childhood from turning into larger ones later in life."