Dan Walker says getting up at 3am for six years hosting BBC Breakfast "took a toll on his brain and body" - and now he is looking forward to a "fresh challenge" hosting Channel 5 news shows.
Former BBC host Dan begins presenting 5 News on Monday and he insists his move is not money motivated and it was the right time to move on.
Ahead of the launch, he says he has not done a full run through in the studio with co-host Claudia-Liza Vanderpuije as he prefers to keep everything spontaneous.