Fifteen minutes of exercise creates optimal brain state for mastering new motor skills, a study has found. The study revealed that exercise performed immediately after practicing a new motor skill improves its long-term retention. More specifically, the research shows, that a minimum of fifteen-minute of cardiovascular exercise increases brain connectivity and efficiency. To find out, the research team asked study participants to perform two different tasks. Participants were then asked to repeat an abridged version of this task, known as a handgrip task, at intervals of 30, 60, 90 minutes, after exercise or rest, while the researchers assessed their level of brain activity.