How does the brain know which memories to keep and which ones to delete?

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Like, I can remember that I spilled orange juice in the living room when I was 5, but can’t remember what I had for dinner last Tuesday.

In: Biology

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Anonymous 0 Comments

You can think of memories as little towns in your brain. When you have an experience it’s like settling a new little town in your brain. If the experience is significant the town will be large and if it’s small the town will be small.

Now when you have those experiences again, more people move into that town and it gets bigger. They build bigger roads and make it easier for people in that town to tell you about that experience. Even small towns can get quite large if it is an event which happens often as each time it happens, more people move into that little town and make those roads stronger. The little towns never leave either they are always there but it will be very difficult to communicate with that town (making it difficult to recall that experience)

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