It is the children who inspire Victoria Mwenda in her work in one of the world’s oldest and largest refugee camps. “Children are so genuine and responsive,” says Mwenda, a nutritionist with the UNHCR at the Kakuma Refugee Camp in northwestern Kenya. Established in 1992 to accommodate Sudanese refugees, today the camp is home to some 75,000 refugees from at least nine African countries. Mwenda has served in Kakuma for three years—a long stint for a young relief worker. Turnover tends to be high among humanitarian workers who deal daily with the needs of thousands of people, often with dwindling resources. Such stress is compounded by the area’s searing heat and harsh semi-desert terrain—but to Mwenda, it’s a second home.