During On the Road Again Tour, Zayn Malik announced his decision to exit the tour, citing "stress" as the reason behind his departure. A representative for the band said in a statement: "Zayn has been signed off with stress and is flying back to the UK to recuperate".
One Direction Wiki is a collaborative encyclopaedia designed to cover everything there is to know about the British-Irish boy band, One Direction. This wiki is a fan created site which means anyone is free to edit in order to improve the content. Fans can come together and document every album, song, tour, event, TV appearance, and more!
Here's some links to give you some ideas on what needs editing.