Research

Hormonal

Acute intranasal insulin administration improves hippocampus-dependent memory and working memory in women, but not in men.

If you are a healthy woman, acute intranasal insulin may help improve your memory, but this effect does not appear to exist for men. This suggests that treatments targeting central insulin signaling for cognitive enhancement may need to account for gender-specific biological responses.

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In contrast, hippocampus-dependent memory and working memory were improved in women (P < 0.03, P < 0.05, respectively), whereas men did not benefit from acute insulin treatment (P > 0.17, P > 0.20).
Christian Benedict et al. · The Journal of Clinical Endocrinology & Metabolism · 2008

Why this rating

Randomized, double-blind, placebo-controlled crossover design with healthy subjects, though small sample size (n=32).

Source

Differential Sensitivity of Men and Women to Anorexigenic and Memory-Improving Effects of Intranasal Insulin

Christian Benedict et al. · The Journal of Clinical Endocrinology & Metabolism · 2008

DOI 10.1210/jc.2007-2606

crossover · n=32Cited 289×
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DOI resolved against Crossref · corpus check 2026-06-10

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