The Duchess of Cambridge will be guest editing Huffington Post UK for a day to raise awareness for children's mental health.
Kate, 34, will welcome journalists from the online newspaper to Kensington Palace in February, where she'll work with them on articles about mental health initiatives for kids.
A rep for the royal said: "The Duchess of Cambridge will continue her work to highlight the importance of children's mental health when she serves as guest editor of the HuffPost UK for a day in mid February.
"The Duchess will use the opportunity to highlight the inspiring work being done by parents, teachers, researchers and mental health professionals around the country. [She] has made the mental health of young children a key focus of her work in recent years.
"She is delighted that the Huffington Post will help put a spotlight on the important issue."
HRH will highlight the importance of children's mental health and the inspiring work being undertaken in this field around the country— Kensington Palace (@KensingtonRoyal) January 15, 2016
Kate has made children's mental health a priority when it comes to the charities and foundations that she supports. Among the charities of which she is a patron are The Art Room and Place2Be.
The Art Room works with children to increase their self-esteem, self-confidence and independence through art, while Place2Be provides integrated school-based mental health and emotional support services.
She recorded a rare video message in February 2015 for the UK's first Children's Mental Health Week, urging children and adults to speak openly about issues that may be affecting them.
"Both William and I have seen many young people are struggling to cope with the impact of bullying, bereavement, domestic violence, family breakdown and more. Without support, the effects of these challenges can be traumatic, leading to serious issues such as anxiety, depression, addiction and self harm.
"We need to help young people and their parents understand it isn't a sign of weakness to ask for help. A child's mental health is just as important as their physical health and deserves the same quality of help."
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