What Memories Are Made Of

Our memories are imperfect treasures – dear to our hearts but not necessarily accurate snapshots of reality. CNN's Chief Medical Correspondent Dr. Sanjay Gupta talks to neurobiologist Michael Yassa about how memories are stored in the brain, why we forget, and what we’ve gotten wrong about how it’s supposed to work. To help understand the mechanisms of memory, we meet a woman who remembers absolutely everything... and a man who can’t even recall what he ate for breakfast. Plus, actionable tips for how we can keep our memories sharp at any age.

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