Tag: declines

As people age, they often lose their motivation to learn new things or engage in everyday activities. In a study of mice, MIT neuroscientists have now identified a brain circuit that is critical for maintaining this kind of motivation. This circuit is particularly important for learning to make decisions that require evaluating the cost and

Deaths of children under 5 have dropped by nearly 20 percent in just two years in a poor, rural district in Madagascar—despite the island nation having the lowest health-spending level in the world. This transformation echoes the strength of results seen across the last decade in rural Rwanda, where under-5 mortality dropped 60 percent between