Kate is well into her guest editing role at the Huffington Post UK, and she seems to be thriving in her day on the job. The Duchess of Cambridge used her first blog post written for the site to explain the purpose of her new Young Minds Matter initiative, sharing her hopes for growing Prince George and Princess Charlotte.

The 34-year-old said that her role as Patron of a number of different charities, including Place2Be and Action on Addiction has helped her to see that many problems in adulthood stem from unresolved childhood issues.

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Kate continued to say that as parents, she and Prince William will encourage their children to discuss their feelings openly as they grow up to maintain their mental wellbeing.

"Like most parents today, William and I would not hesitate to seek help for our children if they needed it," Kate wrote. "We hope to encourage George and Charlotte to speak about their feelings, and to give them the tools and sensitivity to be supportive peers to their friends as they get older.

"We know there is no shame in a young child struggling with their emotions or suffering from a mental illness."

The Duchess is guest editing the online news site from a temporary newsroom set up at Kensington Palace. In preparation for the day Kate has already helped to commission a series of articles, blogs and videos from several leading figures in the mental health sector that she has previously worked with.

The content will draw attention to the inspiring work being done by parents, teachers, young people and researchers around the country. It will be released on The Huffington Post site throughout the day using the hashtag #YoungMindsMatter, and aims to inspire families and teachers to discuss mental health with children and young people.

During her guest edit, The Duchess will discuss the content of the articles with the reporters and authors, and will also take part in the planning process for when the material will be released throughout the day.

Kate's ongoing commitment to supporting children's mental health issues is clear, and on Wednesday it was announced that she had become patron of the Anna Freud Centre, which works to reduce the burden of mental health difficulties of children and young people.