Chris Martin has experimented with "alcohol and drugs".
He said: "Success and fame, alcohol and drugs. We've been through all of those things. They're just pitfalls, and that comes from a lot of travelling and a lot of down time."
The 34-year-old musician - who has just released the band's fifth LP 'Mylo Xyloto' - also revealed he feels blessed to be married to Gwyneth Paltrow and joked it's not bad "coming home to an Oscar winner".
Speaking about his relationship, Chris - who has two children, daughter Apple, seven, and five-year-old son Moses, with the actress - added: "It's not all bad. As you get older, you have kids, but there is also a lot more sadness. Our music is reflecting that."
When the band is on tour, the 'Paradise' singer insists he and his three bandmates - guitarist Jonny Buckland, bassist Guy Berryman and drummer Will Champion - become each other's substitute family and their closeness is reflected in everything the group does.
During an interview on UK station Absolute Radio, he said: "We split our songwriting credits and everything we get, we split it equally. It means when One Of Us is having a hard time or a problem, then we all have the best interests of each other at heart."
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