Duchess of Cambridge launches The Royal Foundation Centre for Early Childhood

The video begins with a welcome to attendees, including distinguished guests and experts. It highlights the importance of early life changes and their long-term societal impact. The session aims to explore a significant report from various perspectives. The speaker, Greg Wineman, introduces himself as a perinatal psychiatrist and president of the maternal mental health lines, which he founded a decade ago.

What is the purpose of the gathering mentioned in the text?

How long has the maternal mental health lines been founded according to Greg Wineman?