July 2026 in “The Journal of Immunology” This study observed that in both mouse and human models of alopecia areata, T cells exhibit a stress response involving heat shock proteins and other regulatory markers, suggesting their potential as targets for therapeutic intervention in this autoimmune skin disease.
This study found that some white or grey human hairs can naturally regain pigmentation, suggesting a potential temporary reversibility of hair greying associated with stress and molecular changes.
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June 2021 in “Journal of the European Academy of Dermatology and Venereology” This review discusses how acute exposures to environmental and internal stressors can quickly alter skin functions, leading to various dermatological symptoms, and calls for more research on these short-term effects.
This study found that inhibiting the Mitochondrial Pyruvate Carrier in human scalp hair follicles caused metabolic stress that halted cell proliferation and disrupted key signaling pathways, with these effects partially reversed by an integrated stress response inhibitor.
November 2023 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” In this study, researchers examined the genetic factors impacting cortisol and DHEA concentrations in the hair of healthy pigs; they found that cortisol levels were heritable and genetically correlated with behavioral stress responses, suggesting these hormones could potentially serve as indicators for selecting disease-resilient pigs.