A busy working mom, Christina also makes time to help feed children around the world. She's becoming a United Nations ambassador for world hunger with the World Food Programme. "A child dies every six seconds of hunger, which was a huge statistic for me and one that, after having my own child, I was like, 'I have to be a part of this, do my part in some way,'" she says.

Christina recently returned from a trip to Guatemala and is planning to visit Haiti to help with relief efforts. "We just helped deliver food," she says. "I visit orphanages and the schools there and try to do my part to help."

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