In her new book titled The Balance: My Years Coaching Simone Biles, the 28-year-old Olympian's former coach Aimee Boorman ...

There were times during Simone Biles' nascent rise to stardom over a decade ago when she would arrive for practice and Aimee ...

Aimee Boorman coached Simone Biles for more than a decade and helped her win five medals at the 2016 Olympics.

Aimee Boorman, author of the new book "The Balance," coached Simone Biles for more than a decade, including at the 2016 ...

The United States' Simone Biles listens to her coach, Aimee Boorman, during the artistic gymnastics women's individual ...

Five years before Biles had to withdraw from the Tokyo Games, she dealt with the same scary issue leading into Rio ...

Simone Biles, once opened up about the moment her longtime coach, Aimee Boorman, realized the gymnasts strength and ability to compete at the Olympics circuit.

There were times during Simone Biles' nascent rise to stardom over a decade ago when she would arrive for practice and Aimee Boorman could sense immediately what kind of day it was going to be.