Sep 3, 2026 · 1h 4m
Your brain keeps changing well beyond the age of 25
453. 7 facts you need to know about your brain
The episode replaces familiar brain myths with a more useful account of development, plasticity, emotion, memory, and the gut-brain connection.
- 1The brain does not operate at a hidden ten-percent capacity; popular films distort how neuroscience works.
- 2Neuroplasticity and continued frontal-lobe development mean the brain remains changeable throughout the twenties.
- 3Forgetting, emotional pain, and the gut-brain connection reveal how the brain supports adaptation and wellbeing.
Don't miss
The episode dismantles the popular claim that the brain stops developing at age 25 by emphasizing continued frontal-lobe development.
The brief
Movies such as Lucy and Limitless turn the brain into a reservoir of untapped superpowers, but their premise rests on the false ten-percent myth.
Jemma challenges the idea that brain development ends at 25, focusing on the frontal lobe and the continued changes that matter in the twenties.
The episode broadens the picture through neuroplasticity, emotional pain, the gut-brain connection, and forgetting—features that make the brain adaptive rather than fixed.
Its central message is practical: understanding the brain as changeable can replace rigid milestones with a more accurate view of development and support.
Books & mentions
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