Brooke Shields, 59, criticized how men and women are treated differently in the healthcare system and said women "need to be able to self-advocate."

Brooke Shields is sharing the message she hopes readers take away from her new memoir, "Brooke Shields Is Not Allowed to Get Old: Thoughts on Aging as a Woman." In an interview with "Good Morning America," the actress and model said the book's message for women is "that this period of their time over 40 is a wonderful time, and it's all about you."

Shields recalled the story of a social media user criticizing her looks during a recent appearance on 'The Kelly Clarkson Show.'

Brooke Shields challenges Hollywood's aging stigma through her raw memoir, new business venture, and candid revelations about self-discovery after 50.

The biggest takeaways from Brooke Shields' new memoir about motherhood, menopause and society's view of aging women, especially in the spotlight.

Shields was only a newborn when she appeared in her first TV ad, setting off a chain reaction of events that would see her become a generational touchstone of beauty and youth. Her candid new book is a surprisingly optimistic take on aging full of lessons in self-love and self-advocacy,

Brooke Shields always keeps it real when it comes to aging. Shields, 59, opened up about getting older in the public eye while making an appearance on Good Morning America on Monday, January 13, while promoting her memoir,