Smarter
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What’s it about?
An investigative journalist tests brain-training games, drugs, and exercise to uncover what actually makes us smarter—and finds the truth is harder than a quick fix.
You’ll learn
- Brain-training games rarely improve real-world intelligence
- Processing speed training can boost fluid reasoning
- Aerobic exercise releases BDNF, the brain's growth factor
- Smart drugs and nootropics are mostly hype