April 2012 in “Informa Healthcare eBooks” The document concludes that diagnosing hair loss requires evaluating multiple histological features, as no single feature is definitive on its own.
February 2021 in “Journal of Investigative Dermatology” Hair loss in male pattern baldness is linked to changes in specific genes and proteins that affect hair growth and scalp health.
January 2014 in “International Journal of Athletic Therapy and training” A female runner's hair loss was caused by stress from surgery and recovery, but her hair returned to normal in 5 months.
January 2026 in “Cosmetics” New regenerative treatments show promise in improving hair growth for androgenetic alopecia.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” Hair loss is common, with different types affecting people due to genetics, stress, or autoimmune issues.
4 citations
,
November 2021 in “Frontiers in Cell and Developmental Biology” Aging causes hair loss and graying due to stem cell decline and changes in cell behavior and communication.
9 citations
,
June 2011 in “International Journal of Cosmetic Science” The new mild shampoo helped prevent hair loss in the subjects.
Applying thyroid hormones to the scalp can help hair grow.
152 citations
,
December 2003 in “Micron” As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.
9 citations
,
July 1982 in “International Journal of Dermatology” A 31-year-old man's hair turned white suddenly, likely due to alopecia areata.
24 citations
,
May 2010 in “Hautarzt” Different hormones affect hair growth and conditions, with some causing hair loss and others promoting it.
6 citations
,
March 2011 in “European Journal of Dermatology” Nestin-positive cells are important for hair follicle regeneration in alopecia areata.
1 citations
,
July 2018 in “Elsevier eBooks” Triple horizontal scalp biopsies are 98% accurate in diagnosing hair loss, better than single biopsies.
137 citations
,
July 2004 in “Journal of The American Academy of Dermatology” Horizontally sectioned scalp biopsies are more reliable for diagnosing hair loss in women when three samples are taken instead of one.
June 2023 in “Research Square (Research Square)” Autophagy, a cell process, helps activate hair growth stem cells and promote hair growth by controlling glycolysis, a type of cell metabolism.
36 citations
,
November 1961 in “Archives of Dermatology” The document suggests that the traditional understanding of hair growth cycles and alopecia may be inaccurate and that blood supply plays a significant role in hair growth and loss.
January 1999 in “대한피부과학회지” Trichotillomania is more common in young females and often linked to stress and psychiatric conditions, with hair loss and increased catagen hair observed.
7 citations
,
December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
April 2017 in “Journal of Investigative Dermatology” Blocking JAK-STAT5 signaling in mice leads to hair growth.
23 citations
,
June 1976 in “PubMed” Crash dieting can cause temporary hair loss due to not getting enough energy for hair growth.
October 2021 in “Cosmoderma” Hair loss can be managed with treatments like minoxidil, finasteride, and others, but there are still gaps in effectiveness and off-label usage is increasing.
June 2024 in “British Journal of Dermatology” Avoid tight hairstyles and use minoxidil to prevent and treat hair loss in young Sikh boys.
12 citations
,
March 2021 in “Journal of Investigative Dermatology” TRPM5 is crucial for maintaining hair growth.
2 citations
,
June 1994 in “Der Hautarzt” DNA-flowcytometry is a reliable method to evaluate hair growth in androgenetic alopecia.
July 2024 in “Journal of Investigative Dermatology”
68 citations
,
March 1965 in “The BMJ” Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.
136 citations
,
June 2006 in “Journal of Dermatological Science” PDGF isoforms can promote and sustain hair growth.
1 citations
,
January 2009 in “Drug delivery system” Anti-aging treatments like hair transplants, minoxidil, and finasteride effectively promote hair growth.
4 citations
,
July 2014 in “Journal of Investigative Dermatology” Old people have less hair because their hair follicles don't regenerate as well, not because of fewer stem cells, and a protein called follistatin might help reactivate hair growth.