It’s long been known that meditation helps children feel calmer, but new research is helping quantify its benefits for elementary school-age children. A 2015 study found that fourth- and fifth-grade students who participated in a four-month meditation program showed improvements in executive functions like cognitive control, working memory, cognitive flexibility — and better math grades. A study published recently in the journal Mindfulness found similar improvements in mathematics in fifth graders with attention deficit hyperactivity disorder. And a study of elementary school children in Korea showed that eight weeks of meditation lowered aggression, social anxiety and stress levels.