January 2026 in “Western Journal of Nursing Research” Hair cortisol levels don't reliably indicate chronic stress in people with multiple sclerosis.
252 citations
,
January 2008 in “Trends in Endocrinology and Metabolism” Melatonin in the skin helps protect against damage from stress and UV rays, and could be used to treat certain skin conditions.
150 citations
,
October 2010 in “The American Journal of Pathology” The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.
116 citations
,
May 2013 in “Proceedings of the National Academy of Sciences of the United States of America” Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.
90 citations
,
July 2014 in “Conservation Physiology” Hair cortisol levels in brown bears can be affected by both long-term and short-term stress.
78 citations
,
November 2014 in “Functional Ecology” Heavily hunted wolves have higher stress and reproductive hormone levels.
77 citations
,
March 2021 in “Nature” Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.
75 citations
,
January 2009 in “International journal of trichology” Hair grays due to oxidative stress and fewer functioning melanocytes.
51 citations
,
November 2005 in “Journal of Medical Primatology” Alopecia in captive rhesus macaques is affected by season, sex, age, housing, and stress, with complex links between stress hormones and hair loss.
49 citations
,
April 2016 in “International journal of molecular sciences” Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.
47 citations
,
January 2024 in “iScience” Stress keratins are expressed less in diseased skin and are linked to differentiation, inflammation, and immunity.
42 citations
,
May 2013 in “Oral Diseases” Kennedy's disease leads to muscle weakness without a cure, but exercise and managing symptoms may help patients live a normal lifespan.
39 citations
,
June 2017 in “Scientific Reports” Different lab conditions and light treatment methods change how human skin cells respond to light therapy.
36 citations
,
May 2025 in “Antioxidants” Lipid peroxidation worsens skin diseases but may help treat cancer.
36 citations
,
September 2009 in “Journal of Cellular and Molecular Medicine” New treatments targeting skin stem cells show promise for skin repair, anti-aging, and cancer therapy.
34 citations
,
March 2020 in “BMC plant biology” Graphene oxide and indole-3-acetic acid together inhibit root growth in Brassica napus L. by affecting multiple plant hormone pathways.
33 citations
,
April 2020 in “Journal of Clinical Investigation” Stress in hair follicle stem cells causes inflammation in a chronic skin condition through a specific immune response pathway.
30 citations
,
March 2001 in “Environmental Health Perspectives” Small changes in hormones can significantly impact health, showing the importance of sensitive testing for chemicals that disrupt hormones.
17 citations
,
February 2015 in “Cell Death and Disease” Inhibiting AP1 in mice skin causes structural changes and weakens the skin barrier.
13 citations
,
January 2016 in “Annals of Dermatology” Stress can slow hair growth by affecting certain cells and pathways.
12 citations
,
April 2020 in “British Journal of Dermatology” Caffeine may help reduce stress-induced hair loss.
12 citations
,
September 2011 in “Archives of Dermatological Research” Policemen have more hair loss due to obesity, sunlight exposure, and stress.
11 citations
,
October 2022 in “Clinical Cosmetic and Investigational Dermatology” Personalized skincare can be improved by understanding genetic differences and using compounds like Resveratrol and Quercetin.
9 citations
,
June 2020 in “BMC Molecular and Cell Biology” Stress hormone CRF can cause hair loss by affecting hair growth cells and hormones.
8 citations
,
November 2017 in “Journal of Investigative Dermatology” AGA linked to inflammation, stress, fibrosis, and disturbed hair follicle stem cells.
7 citations
,
March 2023 in “Journal of Investigative Dermatology” Low-intensity ultrasound may help protect hair follicles from chemotherapy-induced hair loss.
7 citations
,
September 2020 in “Journal of Cosmetic Dermatology” Smoking increases early hair loss risk in men; quitting may help prevent it.
6 citations
,
November 2022 in “Antioxidants” OR2AT4 helps reduce aging and cell damage in human skin cells.
5 citations
,
May 2021 in “Veterinary medicine and science” Injecting cosyntropin into grizzly bears increases blood cortisol but doesn't change hair cortisol levels.
4 citations
,
June 2025 in “JMIR Formative Research” Hair cortisol concentration may reflect some physiological stress but doesn't strongly correlate with perceived stress.