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the claim

Human fingernails have a purpose: they protect the fingertip and improve fine touch and grip.

the verdict
INSUFFICIENT LEANING
Recorded sources
5 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that human fingernails have a purpose: they protect the fingertip and improve fine touch and grip?

Unclear. The retrieved items only partially address the claim: one artificial-finger study indicates the nail improves grasping stability, and several sources describe fingertip tactile sensitivity, but none directly establishes that fingernails protect the fingertip or improve fine touch.

Verdict: PARTIAL LEAN · 5 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 5
Fingertip Injuries: From Current Epidemiology in Mexico to Reconstructive Options. A Literature Review
2026
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Gutiérrez, L. E. C., Nieto, A. C. R., & Ferto, Y. M. (2026). Fingertip Injuries: From Current Epidemiology in Mexico to Reconstructive Options. A Literature Review. zenodo.org. https://doi.org/10.5281/zenodo.18513988

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More for · 4
Nails: Fingernail & Toenail Anatomy
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Nails: Fingernail & Toenail Anatomy. (n.d.). my.clevelandclinic.org. https://my.clevelandclinic.org/health/body/nail-anatomy

A touch of hierarchy. Population Receptive Fields reveal fingertip integration in Brodmann areas in human primary somatosensory cortex
2021
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Schellekens, W., Thio, M., Badde, S., Winawer, J., Ramsey, N., & Petridou, N. (2021). A touch of hierarchy. Population Receptive Fields reveal fingertip integration in Brodmann areas in human primary somatosensory cortex. doi.org. https://doi.org/10.1101/2021.01.15.426783

Single human fingertip mechanoreceptive afferents simultaneously encode multidimensional aspects of touch
2025
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Lang, V. A., Wasling, H. B., Ackerley, R., & Wessberg, J. (2025). Single human fingertip mechanoreceptive afferents simultaneously encode multidimensional aspects of touch. doi.org. https://doi.org/10.1101/2025.10.28.685066

Improvement of precision grasping performance by interaction between soft finger pulp and hard nail
Get citation
Improvement of precision grasping performance by interaction between soft finger pulp and hard nail. (n.d.). cir.nii.ac.jp. https://doi.org/10.1089/soro.2021.0231

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