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Psychology

How Sleep Consolidation Enhances Memory Retrieval

Quick fact

During sleep, the hippocampus replays the day's experiences at accelerated speed, sometimes thousands of times, strengthening the neural pathways that allow us to retrieve memories later.

Why this is interesting

Ever woken up after a full night's sleep and found you remember something you studied the day before much better? That's not just rest—your brain was hard at work, reshaping your memories for easier access.