What is Angelman syndrome? The rare disorder affecting Colin Farrell's son

In a conversation with People magazine, published August 7, 2024, Colin Farrell opened up for the first time about his son's rare condition: Angelman syndrome. Ahead of his son James turning 21, the actor has newly launched the Colin Farrell Foundation, which will support adult children with intellectual disabilities through advocacy, education, and innovative programs.

But what is Angelman syndrome? Who does it affect? And how common is it? For answers to these questions and more, click through this informative gallery today.