Can a pill help your brain stay sharp when you're sleep-deprived?
Single-Dose Creatine Reduces Sleep Deprivation-Induced Deterioration in Cognitive Performance
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Creatine improved cognitive performance without reducing subjective fatigue.
Most cognitive enhancers (like caffeine or modafinil) make you feel more alert. Creatine improved thinking without changing how tired people felt—suggesting it works by fueling brain cells, not masking sleepiness.
Practical Takeaways
Take 0.2 g/kg of creatine (e.g., 14g for a 70kg person) before an all-nighter, exam, or night shift to protect cognitive performance.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Creatine improved cognitive performance without reducing subjective fatigue.
Most cognitive enhancers (like caffeine or modafinil) make you feel more alert. Creatine improved thinking without changing how tired people felt—suggesting it works by fueling brain cells, not masking sleepiness.
Practical Takeaways
Take 0.2 g/kg of creatine (e.g., 14g for a 70kg person) before an all-nighter, exam, or night shift to protect cognitive performance.
Publication
Journal
Nutrients
Year
2026
Authors
A. Gordji-Nejad, Andreas Matusch, L. Hengstler, S. Beer, T. Kroll, Sabine Klein, D. Elmenhorst, A. Bauer, A. Drzezga
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Claims (6)
Taking creatine supplements may enhance thinking and memory in older people or those who are sleep-deprived or have cognitive difficulties, but it does not noticeably change thinking skills in healthy young adults.
After taking a single dose of creatine while sleep-deprived, females show better performance on tasks involving logic, attention, and language speed compared to males, suggesting biological differences in how the brain uses creatine for energy.
During sleep deprivation, taking more creatine (0.35 g/kg) leads to slightly better cognitive performance than taking less (0.2 g/kg), but the benefit does not increase beyond a certain dose, suggesting the brain reaches a limit in how much creatine it can use under these conditions.
Taking 0.2 grams of creatine monohydrate per kilogram of body weight as a single oral dose can reduce the decline in cognitive functions such as logical reasoning, numerical processing, language speed, and attention during 21 hours without sleep in healthy young adults.
Vegetarians who are sleep-deprived show better performance in tasks requiring quick thinking and reaction time after taking a single dose of creatine, likely because their usual diet leads to lower natural creatine levels.