# Why Even One Workout Sharpens Your Thinking, According to Research

*Acute Skeletal Muscle Activation Through Physical Exercise and Its Effects on Cognitive Performance and Neurobiological Markers in Adults: A Scoping Review.*

- **Evidence Level**: Moderate
- **Publication Types**: Journal Article, Review
- **Journal**: Muscles (Basel, Switzerland)
- **Sample Size**: N/A (review of 101 studies in adults)
- **Authors**: Brookman-May SD
- **Published**: 2026-03-30
- **Topics**: exercise, cognition, BDNF
- **DOI**: https://doi.org/10.3390/muscles5020025
- **Original Source**: https://pubmed.ncbi.nlm.nih.gov/42029567/

## Summary

A single session of moderate to vigorous exercise reliably boosts executive function, processing speed, and working memory in adults. Cardio led the pack, but resistance training also improved executive function in many trials. The brain benefits seem tied to short-term spikes in BDNF, lactate, and prefrontal brain activity. So even one workout appears to give your brain a temporary lift.

## Practical Takeaway

This review suggests a single bout of moderate to vigorous exercise may briefly sharpen focus and memory.

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