Research

Hormonal

24-hour plasma free cortisol levels increase with age in association with increased CPR, independent of body size.

Aging is associated with increased cortisol production, which may influence health and body composition.

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In addition, 24-h plasma free cortisol levels were increased with age in association with increased CPR, independent of body size.
Jonathan Q. Purnell et al. · The Journal of Clinical Endocrinology & Metabolism · 2004

Why this rating

The study design supports the measurement of cortisol levels across different ages.

Source

Association of 24-Hour Cortisol Production Rates, Cortisol-Binding Globulin, and Plasma-Free Cortisol Levels with Body Composition, Leptin Levels, and Aging in Adult Men and Women

Jonathan Q. Purnell et al. · The Journal of Clinical Endocrinology & Metabolism · 2004

DOI 10.1210/jc.2003-030440

cross-sectional · n=54Cited 197×
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DOI resolved against Crossref · corpus check 2026-06-10

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