A computational gene is like a Lego block that gives your body instructions on how to build things! Just like how you can build a car or a house with different Lego pieces, your body can build different parts like eyes, ears, and even your brain with different computational genes. Scientists use computers to study these genes and figure out what they do and how they work. By understanding these genes, scientists hope they can help find new ways to treat diseases and make our bodies even stronger and healthier!