This is especially important for the poor, who rely on good health and nutrition for productive work. If they are to improve their incomes and their quality of life they must be able to resist and recover from diseases, and women should be able to count on safe pregnancies. Yet, as outlined in die previous chapter, it has seen health disparities widen — notably for infant and child mortality, maternal mortality and the proportion of underweight children. This echoes the concerns raised by the MDG Summit in September 2010 which drew attention to the persistent imbalances in the current workings of the global economy, which are socially, economically and environmentally unsustainable.