Housemates could be seen by a medical professional in the Diary Room if necessary.
David, who was isolated in the Diary Room, had to answer questions based on their answers.
He was immediately called into the Diary Room and expelled from the game.
Future seasons of the series would feature more elaborate Diary Rooms.
These are allowed at any time, and are often conducted by telephone from the Diary Room.
The Diary Room for the first season featured a simple design, being a small chair with a white background.
Following this, the two friends debated walking from the game, but after talking in the Diary Room they were eventually convinced to stay.
The Diary Room is also used once a week for the housemates weekly nominations.
Instructions and items for tasks are also delivered via the Diary Room.
The main feature of the Diary Room is the chair used.