A new study sheds light on how exercise boosts brain function by exploring the role of nerves in muscle-brain communication. The study, published in the Proceedings of the National Academy of Sciences, reveals that muscles release molecules that support brain cell communication and development, and this release is driven in part by signals from the nerves that tell muscles to move. These findings help clarify the complex relationship between exercise, muscle function, and brain health. Previous research has established that when muscles are engaged during physical activity, they release molecu…