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Episode 80 · Learning & Memory
Why Learning Keeps the Brain Flexible
If you think your brain is done changing, adult neurogenesis is the more careful story. In adults, some research has found new neurons in the hippocampus.
The Science
- Eriksson et al. / Gage (1998), Nature Medicine: the adult human hippocampus can form new neurons, so the brain is not fixed at birth.
- That region supports memory, maps, and learning from experience, and new learning gives it reasons to update.
- Movement and sleep support the body state learning depends on, while chronic stress makes it harder to reach.
- Adult neurogenesis is the careful version of the brain can still change.
The Protocol
- Small novelty with recovery: pick one skill that feels unfamiliar but doable.
- Practice it in short repeats instead of one heroic cram session.
- Add movement before or after, and protect sleep that night.
- Notice the signal, name the mechanism, and change one input before autopilot.
One-page summary
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The science beat (5-sec loop)
Sources
- Eriksson PS, et al. (Gage FH). Neurogenesis in the adult human hippocampus. Nature Medicine. 1998;4(11):1313-1317.
Educational content only. Not medical advice.
Also on Instagram: @neurosensebrain
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