This study found that women undergoing mid-trimester termination of pregnancy exhibited increased cumulative cortisol and testosterone levels in hair samples, higher anxiety, but better stress coping strategies two months post-abortion, suggesting hair testosterone may be linked to emotional vulnerability such as neuroticism during this period.
March 2023 in “Journal of the turkish academy of dermatology” This study found that patients with onychomycosis had higher serum ceruloplasmin levels than healthy controls, which were also positively correlated with both disease duration and severity.
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January 2021 in “Frontiers in veterinary science” This study found no significant difference in hair cortisol concentrations, a chronic stress indicator, between sows in farrowing crates and those in loose-housing systems.
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June 2007 in “Almustansiriya journal of pharmaceutical sciences/Al-Mustansiriyah journal of pharmaceutical sciences” This study found that a two-month antioxidant treatment significantly improved hair growth in patients with alopecia areata by enhancing antioxidant defenses and correcting trace metal imbalances.
May 2026 in “Nature Environment and Pollution Technology” This study found that both acute and chronic exposure to nano polystyrene in laboratory rats disrupted hematological function, increased oxidative stress, and led to behavioral and physiological changes, like anemia-like effects and neurological disruptions, suggesting its potential as a cumulative toxicant.