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Updated: Aug 11, 2026

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A Reproducible Computerized Method for Quantitation of Capillary Density using Nailfold Capillaroscopy
Published on: October 27, 2015
Summary
Nail growth slows with age, as evidenced by a 35-year study. Daily thumbnail growth decreased from 0.123 mm at age 32 to 0.095 mm at age 67.
Area of Science:
- Gerontology
- Dermatology
- Human Physiology
Background:
- Human nail growth is a continuous process.
- Age-related physiological changes can affect various bodily functions.
- Longitudinal studies are valuable for tracking developmental changes over time.
Purpose of the Study:
- To observe and quantify the effect of aging on human nail growth.
- To establish a correlation between chronological age and nail growth rate.
Main Methods:
- A 35-year observational study was conducted.
- The daily growth rate of the left thumbnail was measured.
- Data was collected and analyzed over the observation period.
Main Results:
- A noticeable slowing of nail growth was observed with increasing age.
- The average daily growth rate of the left thumbnail decreased from 0.123 mm/day at age 32 to 0.095 mm/day at age 67.
Conclusions:
- Human nail growth rate declines with advancing age.
- This finding contributes to understanding age-related physiological changes in humans.
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