Our score
Outstanding
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Spark Audiobook by John J. Ratey MD— narrated by Allan Robertson
The Revolutionary New Science of Exercise and the Brain
John Ratey makes the case that exercise is the single best thing you can do for your brain, not just your body. Spark is the book that reframes a workout as cognitive medicine, and it's genuinely motivating.
Why the audiobook wins
Allan Robertson gives Spark the steady, clinical clarity it needs without ever sounding like a lecture. Ratey's case, that exercise is direct medicine for the brain, leans on studies and brain chemistry, and Robertson's pacing keeps the science legible without dumbing it down, which matters in a book that asks you to follow real neuroscience for hours at a time.
This is a book practically designed to be heard rather than read, since its entire argument is that you should be moving more. It's a natural fit for a run, a long walk, or a gym session, letting you absorb Ratey's case for exercise while doing the very thing the book is arguing for.
At around nine and a half hours, it's a substantial but manageable listen, the kind of nonfiction that rewards a few weeks of commutes. One Audible credit turns your workout time into research time.
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Audiobook questions
- Who narrates the Spark audiobook?
- Allan Robertson narrates the audiobook edition of Spark.
- How long is the Spark audiobook?
- The audiobook runs 9 hr 38 min.
- Is the Spark audiobook worth listening to?
- We scored Spark 4.6 out of 5. Allan Robertson gives Spark the steady, clinical clarity it needs without ever sounding like a lecture. Ratey's case, that exercise is direct medicine for the brain, leans on studies and brain chemistry, and Robertson's pacing keeps the science legible without dumbing it down…
- Can I listen to Spark free with an Audible trial?
- Eligible new Audible members can use a free-trial credit to listen in the Audible app. Eligibility and current offer terms are set by Audible.Listen to Spark free with an Audible trial
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- Is Spark on Kindle Unlimited?
- Yes. Spark was included with Kindle Unlimited when we last checked on June 30, 2026.
- How much does Spark cost?
- On Amazon: Kindle $11.99, Paperback $11.12, Hardcover $6.73. Prices as of August 22, 2026 at 3:45 AM EDT and may change.
