Spark by John J. Ratey & Eric Hagerman - Book Summary

7 Minute Books: Free Book Summaries · Sep 16, 2026 · 6m · transcript

“Why Moving Your Body Is the Best Thing You Can Do for Your Brain”

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Title: Spark

Author: John J. Ratey & Eric Hagerman

Category: Psychology & Human Behavior, Culture & Society

What if the single best thing you could do for your brain today isn't a supplement, a puzzle, or a productivity hack — but simply moving your body?

Sam and Sophie walk through John J. Ratey's argument in Spark, starting with the biology: a protein called BDNF that Ratey…