Dreaming

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A small part of our brains replay our daily impressions while we’re in rapid eye movement (REM) sleep. That part is called the hippocampus, and it’s shaped like a seahorse. Memories are stabilized, copied, and filed. The least relevant of the emotional parts are removed. The brain also discovers new relationships between collections of memory. Offline time—when we don’t think about a problem—gives us new logical insights. Our brain runs this logical thread in the background, not only while we’re asleep but also in offline time when we’re awake. Small, regular breaks will improve our deciphering capacity.

Eugène Aserinsky and Nathaniel ...

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