Matthew McConaugheyMatthew McConaughey has revealed he goes through a personal detox twice a year to give himself a regular reality check.

He told Playboy magazine recently: “You can get too much of things - booze, nicotine, women, your BlackBerry, attention, fame, needing people around, TV, the Internet.

“Fasting is a way to pull back, go back and check on what you really need.”