CEPAR is a place where grown-ups learn about how people get older and what happens when they do. It's like a big school for scientists and experts who want to figure out how we can all live happier and healthier lives as we get older. They do lots of research and ask lots of questions to find out things like why some people get sick and others stay healthy when they get old, or what kind of jobs are good for older people to have. By learning about all these things, they help make the world a better place for everyone who is getting older.