June 2018 in “Advances in Cosmetic Surgery” Hair loss caused by genetics and hormones; more research needed for treatments.
Hair loss can cause significant social and emotional issues, especially for women and young men.
159 citations
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July 2006 in “Endocrine Reviews” Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.
56 citations
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February 2010 in “PLOS ONE” Blocking Wnt signaling in young mice causes thymus shrinkage and cell loss, but recovery is possible when the block is removed.
32 citations
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December 1999 in “Journal of Investigative Dermatology Symposium Proceedings” 17-β-Estradiol applied to the skin stops hair growth, while ICI 182 780 helps hair grow in mice.
31 citations
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December 2010 in “Journal of the American Academy of Dermatology” Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.
18 citations
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January 2020 in “Journal of the European Academy of Dermatology and Venereology” High-potency steroids or tacrolimus are effective treatments for Erosive Pustular Dermatosis of the Scalp.
9 citations
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November 1993 in “Journal of The American Academy of Dermatology” Some men can have female pattern baldness without hormonal abnormalities or signs of feminization.
4 citations
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August 2025 in “Scientific Reports” Hair analysis can effectively detect diabetes and aging markers.
4 citations
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June 2025 in “Medeniyet Medical Journal” TMPRSS2 is crucial for COVID-19 infection and is a potential target for treatment.
2 citations
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February 2019 in “bioRxiv (Cold Spring Harbor Laboratory)” The Asiatic lion has very low genetic diversity and unique genetic traits, highlighting the need for its conservation.
2 citations
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December 1983 in “Outlook on Agriculture” Plant hormones have potential in agriculture to increase food production but require more research for effective use.
January 2021 in “Benha Journal of Applied Sciences” Prolactin levels and gene polymorphism are not linked to vitiligo severity but are related to BMI.
A high-fat diet caused severe health problems in female macaques but was reversible with a normal diet, while male macaques reacted differently.
May 2017 in “InTech eBooks” Trichoscopy and trichogram are useful for diagnosing hair and scalp conditions.
March 2015 in “Zagazig University Medical Journal” Damage to hair follicle stem cells may cause permanent hair loss and scarring in PCA.
688 citations
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June 2007 in “Cell Stem Cell” Removing the ATR gene in adult mice causes rapid aging and stem cell loss.
47 citations
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May 2012 in “Wiley Interdisciplinary Reviews-Developmental Biology” The conclusion is that understanding how feathers and hairs pattern can help in developing hair regeneration treatments.
25 citations
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November 2022 in “British journal of dermatology/British journal of dermatology, Supplement” Baricitinib for severe alopecia areata is generally safe, with common side effects like infections and acne, and low rates of serious complications.
25 citations
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November 2014 in “Ageing Research Reviews” Skin aging is caused by stem cell damage and can potentially be delayed with treatments like antioxidants and stem cell therapy.
7 citations
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June 1992 in “The Journal of Dermatologic Surgery and Oncology” Hair transplantation is a viable treatment for some types of female hair loss, with careful donor assessment and attention to psychological factors.
2 citations
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August 2019 in “International Journal of Cosmetic Science” Older age and certain lifestyles are linked to thinner, weaker hair, while how you see your hair relates to its thickness.
September 2016 in “Princeton University Press eBooks” The document concludes that understanding health requires considering evolutionary perspectives on reproductive fitness, and recognizing the complexity of factors like diet, testosterone, and sexual orientation.
The man has Temporal Triangular Alopecia, a stable, non-scarring hair loss condition best treated with hair transplantation.
7 citations
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June 1967 in “Journal of Investigative Dermatology” Plucking hairs in a certain way can result in intact hair roots, not related to baldness.
4 citations
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January 2015 in “Endocrinology & metabolic syndrome” Testosterone can cause acne and male-pattern baldness, affects hair growth in men and women, and makes male skin more sensitive.
September 2022 in “Scientific Reports” Scalp melanoma is more common and easier to diagnose early in people with androgenetic alopecia due to sun damage.
October 2025 in “International Journal of Cosmetic Science” Shiny, straight hair is seen as more youthful, healthy, and attractive.
April 2023 in “Dohuk medical journal” Trichoscopy effectively differentiates Androgenetic Alopecia from Telogen Effluvium.
April 2023 in “Clinical, Cosmetic and Investigational Dermatology” More people are using online platforms for hair loss treatment due to convenience and privacy.