1) Tyra nearly quit as host of the show during cycle 8 due to stress. 

2) Filming the judging portion from start to finish can take up to six to seven hours for Tyra. 

3) The show airs in 150+ countries. 

4) It also has 40+ international spinoffs, including Norway, Italy, and Sweden. 

5) According to former contestant Renee Bhagwandeen, the application to apply was a solid 10 pages. 

6) The week before contestants can live in the house, they must submit to hours upon hours of psychology tests and both psychologist and counselor visits in order to determine what type of personality you have. 

7) Cameras filmed the contestants for about 20 to 22 hours a day, according to former production crew members. 

8) Judge Nolé Marin said that judges and contestants had minimal interaction outside judging to keep judges and contestants from forming relationships and biases.