For some it's a party trick, for Cameron Diaz, it's her morning routine.
While stopping by The Dr. Oz Show on Tuesday to promote her new book The Body Book, the actress showed off some series skills when it came to chugging water.
"Water wakes you up," the 41-year-old explains. So each morning she likes to, well, take it to the head. "First I brush my teeth because I don't want to swallow all the bacteria in my teeth from the night before. So I make sure that's gone and then I…" The star then starts chugging and entire liter of water.