5 citations
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January 2012 in “Psychology” This study observed that individuals with major unipolar depression have higher levels of sodium and potassium in their hair and decreased antidiuretic hormone levels, similar to changes seen in astronauts after space missions.
December 2025 in “Neurobiology of Stress” This study found that individuals with a recent history of suicide attempts exhibited altered DHEA hair levels, suggesting possible dysregulation of the HPA axis as a biopsychosocial feature, and recommends further investigation into hair hormones as potential markers of suicidal crisis and vulnerability.
2 citations
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December 2022 in “Metabolites” This study found that progesterone levels were suppressed in underweight anorexia nervosa patients compared to healthy controls, as measured through hair analysis, and did not increase during short-term weight restoration.
This study examined hair mineral and free amino acid components in various diseases and found that when using effect size analysis, specific components related to diabetes and other conditions were identified, suggesting their potential as novel health indicators.
157 citations
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June 2015 in “Psychoneuroendocrinology” This study observed that hair cortisol and cortisone concentrations were higher in older individuals and those with diabetes mellitus, highlighting their potential significance for assessing somatic health.