In a world where 148 million children are malnourished, early detection is critical. One attempt to address this pressing need is the MUAC, the Mid-Upper Arm Circumference bracelet, often called the Bracelet of Life. It was designed by Doctors Without Borders to measure the circumference of a child’s arm, quickly signaling their nutritional status. In this animated explainer, MoMA curator Paola Antonelli describes how MUAC is a tiny solution to a huge problem, one it can’t solve without larger efforts.

This Collision Award-winning animated series was made for the exhibition “Pirouette: Turning Points in Design” which highlights the role of designers at their most inventive and constructive, and demonstrates the power of design to translate human experience into tangible forms and envision a better future.