9 citations
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July 2018 in “Journal of Testing and Evaluation” This study found that human hair fibers significantly improve the shear behavior of dry sand, but under saturated conditions, the reinforcement sustains shear strength similar to unreinforced sand.
December 2025 in “Journal of the Korean Society of Cosmetology” This study observed that among adults in their 20s and 30s, deteriorating scalp and hair health increased hair loss stress, which in turn prompted more proactive scalp care behaviors, with hair condition being a stronger motivator than scalp condition.
13 citations
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February 2007 in “Biotechnology and Bioprocess Engineering” 
December 2023 in “Alzheimer's & Dementia” In this study, chronic exposure to finasteride induced metabolic disturbances and depression-like behaviors in young male rats, similar to those caused by obesity, but did not worsen anxiety or depression in obese rats.
20 citations
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August 2015 in “Behaviour change” This study identified six belief themes that may contribute to hairpulling behavior in women with trichotillomania, suggesting an important role for cognitions in this disorder's phenomenology.