Prince William and Prince Harry have made mental health initiatives a cornerstone of their Royal Foundation. Over the years, they’ve also opened up about their own mental health, and on Tuesday, November 20, William opened up about how having children affected his personal well-being.

Appearing at the This Can Happen conference, an event to bring awareness to mental health in the workplace, William said that when he and his wife, Duchess Kate Middleton, started their family, he found it more difficult to separate his work from his home life.

“The relation between the job and the personal life was what really took me over the edge,” William admitted. He said that while he was previously able to separate his work as an air ambulance pilot from his home life, once he became a father and “worked several times on traumatic jobs involving children,” it was much harder to not let the two worlds collide.

“You start to take away bits of the job and keep them in your body,” he continued. “And of course, you don’t want to share with your loved ones because you just don’t want to bring that sort of stuff home.”

Prince William and Duchess Kate have three children — Prince George, 5; Princess Charlotte, 3; and their newest addition, Prince Louis, 7 months. Prince William served as a helicopter pilot with the East Anglian Air Ambulance team from 2014 until 2017, when he hung up his flight suit to focus on his royal duties full time.

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(photo via Kirsty Wigglesworth/WPA Pool/Getty Images)