Unable to retain your memory? A new study suggests that physical exercise four hours after learning can significantly improve long-term memory and memory traces. The findings showed that students who exercised four hours after learning retained the information for two days in comparison to those who exercised either immediately or not at all. Exercise after the stipulated time was associated with more precise representations in the hippocampus -- a brain region important for learning and memory. It shows that we can improve memory consolidation and long term memory by doing sports after learning said Guillen Fernandez from Radboud University in