Hair cortisol content can indicate cortisol exposure and varies with age, puberty, and BMI in youth.
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January 2023 in “International journal of all research education and scientific methods” Hair analysis is better than urine and blood for detecting past drug use.
June 2025 in “Rapid Communications in Mass Spectrometry” The new method improves protein extraction and analysis in hair, aiding biomedical and forensic work.
December 2025 in “Rapid Communications in Mass Spectrometry” Pepsin digestion improves accuracy in analyzing proteins in human hair.
November 2025 in “Journal of Laboratory Medicine” Chronic stress increased after lockdown, especially in young adults and females.