61 citations
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April 2012 in “British Journal of Dermatology” Caucasian women's hair appears thickest in their 20s, with perceived thinning after mid-30s due to both decreasing density and diameter.
21 citations
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April 1990 in “Journal of comparative neurology” The study found that nerve signals are stronger when there are more connection points, but not necessarily denser, along the nerve's path in the spine.
15 citations
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November 2016 in “Journal of The American Academy of Dermatology” Exclamation mark hairs suggest early scalp disease, while white dots indicate it's chronic.
14 citations
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January 2016 in “Biochemical and Biophysical Research Communications” Ginsenoside Re from ginseng may help hair grow by blocking a specific growth-inhibiting pathway.
6 citations
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September 2020 in “Advanced Biology” Blue-light activation of TrkA improves hair-follicle stem cells' ability to become neurons and glial cells.
August 2024 in “Journal of Ayurveda and Integrated Medical Sciences” Murdha Taila, applied through the scalp, effectively treats head and neck issues and stimulates the nervous system.
July 2024 in “Dermatology and Therapy” Darker hair colors may increase the risk of alopecia areata, while lighter hair colors may decrease it.
44 citations
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November 2016 in “Journal of The American Academy of Dermatology” The updated SALT II tool offers a more precise way to measure scalp hair loss.
44 citations
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February 2012 in “The journal of neuroscience/The Journal of neuroscience” Mutations in the PTPRQ gene cause significant balance issues in mice due to hair bundle defects in the inner ear.
15 citations
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July 2012 in “Biological trace element research” Higher hair calcium to magnesium ratios and lower chromium levels in hair may indicate insulin resistance in Korean men.
2 citations
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September 2023 in “PLoS biology” Newly divided skin cells quickly move to join skin structures due to tissue tension and specific signals.
June 2024 in “Nature Cell and Science” The Scalp Coverage Scoring method reliably measures hair density from images.
October 2018 in “Journal of the European Academy of Dermatology and Venereology”
January 2003 in “American Journal of Clinical Dermatology” In 2002, various skin reactions were reported due to different drugs, including allergies, hair loss, skin lesions, and other skin conditions.
301 citations
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February 2019 in “Nature Communications” The research found that different types of fibroblasts are involved in wound healing and that some blood cells can turn into fat cells during this process.
225 citations
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April 2018 in “Journal of Investigative Dermatology” Two main types of fibroblasts with unique functions and additional subtypes were identified in human skin.
4 citations
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February 2022 in “Frontiers in molecular biosciences” Chronic stress in mice changes skin metabolism and gene expression, leading to hair loss.
363 citations
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March 2017 in “Nature Communications” Stem cells help heal wounds by rapidly dividing and migrating to the wound edge.
192 citations
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September 2003 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” Metformin is effective for treating excessive hair growth in women with PCOS and may work better than the standard treatment in some ways.
143 citations
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August 1991 in “Endocrinology” Androgens, like testosterone, are crucial for early testicular descent in rats.
120 citations
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June 2008 in “American Journal of Epidemiology” A simple screening method found that 6.3% of women in a semiurban area in Sri Lanka have polycystic ovary syndrome, with most showing menstrual irregularities.
101 citations
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November 1992 in “Archives of Dermatology” Steroids help hair regrowth, and minoxidil slows post-steroid hair loss, but effects are temporary.
96 citations
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April 2007 in “Journal of Investigative Dermatology” Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.
82 citations
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May 2009 in “Development” EGF and KGF signalling prevent hair follicle formation and promote skin cell development in mice.
76 citations
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December 2006 in “Journal of Dermatological Science” Japanese women typically start experiencing hair loss after 40, with reduced hair density and thickness being the main factors.
61 citations
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February 2001 in “American Journal of Obstetrics and Gynecology” Metabolic syndrome and PCOS are related but separate conditions, with metabolic syndrome increasing the risk of heart disease and diabetes.
59 citations
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September 2008 in “Journal of Burn Care & Research” Nitric oxide gel helps heal skin burns faster by improving skin growth, hair regrowth, and blood vessel formation.
59 citations
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August 2003 in “Phytotherapy Research” Ginseng, especially red ginseng, helps hair grow by increasing blood flow and energy to hair roots.
57 citations
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July 2005 in “Clinics in Plastic Surgery” Reconstruct lips with proper planning, templates, and revisions for appearance and function.
54 citations
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August 2005 in “Alcohol” Finasteride affects alcohol intake in male mice, possibly due to neurosteroids.