107 citations,
September 2002 in “Journal of Investigative Dermatology” Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.
88 citations,
April 2011 in “Archives of Dermatology” Type 2 diabetes, bacterial scalp infections, and tight hairstyles like braids and weaves are linked to a higher risk of a scarring hair loss condition in African American women.
86 citations,
May 2011 in “Journal of The American Academy of Dermatology” How bad a woman's hair loss is doesn't always match how it affects her happiness and daily life.
83 citations,
March 2015 in “International Journal of Dermatology” ADSC-CM treatment improved hair density and thickness in women with hair loss, safely and effectively.
81 citations,
January 2006 in “Journal of cellular physiology” Mice without the vitamin D receptor gene lose hair due to disrupted hair follicle cycles.
76 citations,
November 2010 in “Journal of The American Academy of Dermatology” Some African American women's central scalp hair loss is linked to genetics and past fungal scalp infections, with more research needed on other causes.
72 citations,
December 1983 in “Journal of Investigative Dermatology” Minoxidil helps hair cells live longer and grow longer.
71 citations,
July 2015 in “The Journal of Clinical Endocrinology and Metabolism” Women with PCOS have higher androgen levels that decrease with age but are still higher than in women without PCOS.
68 citations,
December 1991 in “Annals of the New York Academy of Sciences” Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.
67 citations,
May 2010 in “Journal of The American Academy of Dermatology” Some chemotherapy can cause permanent hair loss.
66 citations,
August 1999 in “The Journal of Clinical Endocrinology & Metabolism” Women with acromegaly often have irregular periods due to hormone imbalances and growth hormone effects.
64 citations,
May 2003 in “Journal of health psychology” Women with excess body hair feel psychological distress influenced by societal beauty standards, but distress isn't directly linked to the amount of hair.
61 citations,
January 2013 in “Indian Journal of Dermatology, Venereology and Leprology” Hair usually grows back 1-3 months after treatment for anagen effluvium, and children with Loose Anagen Hair Syndrome often improve by adolescence.
61 citations,
July 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.
59 citations,
November 2018 in “Psychoneuroendocrinology” Lower levels of certain brain chemicals are linked to worse PTSD symptoms in men.
57 citations,
October 2018 in “Journal of The American Academy of Dermatology” Platelet-rich plasma treatment can significantly increase hair count and density in men with pattern baldness, and these improvements can last up to 3 months.
57 citations,
June 2003 in “American Journal of Physiology-cell Physiology” Cyclosporin A helps mice grow hair by blocking a specific protein activity in skin cells.
53 citations,
July 2009 in “Journal of the American Academy of Dermatology” The study suggests smoking is common in HS patients but its role is unclear, and more research is needed to understand HS causes.
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.
50 citations,
August 1999 in “Experimental dermatology” The control system for hair growth cycles is not well understood and needs more research.
48 citations,
March 2003 in “BJOG: An International Journal of Obstetrics and Gynaecology” Mothers and newborns with dental fillings had higher mercury in their hair, but getting fillings during pregnancy didn't raise mercury levels further.
47 citations,
July 2005 in “British Journal of Dermatology” Topical vitamin D3 does not prevent hair loss from chemotherapy.
45 citations,
December 2014 in “Journal of the European Academy of Dermatology and Venereology” Plasmacytoid dendritic cells are a key factor in causing hair loss in alopecia areata and could help differentiate it from other hair loss conditions.
45 citations,
February 2012 Obese women with PCOS are more likely to have fatty liver disease.
45 citations,
January 1999 in “Dermatology” The VQ-Dermato is a reliable French questionnaire for measuring quality of life in chronic skin disorder patients.
44 citations,
December 2010 in “Journal of Investigative Dermatology” Alopecia areata seriously lowers quality of life, especially affecting self-image, mental health, and social life.
43 citations,
January 1977 in “Toxicology and Applied Pharmacology” Minoxidil is mostly safe, but high doses can cause electrolyte imbalances and heart issues in dogs.
42 citations,
April 2011 in “European Journal of Dermatology” Early balding men may have insulin resistance, but lifestyle changes can help.
42 citations,
November 2002 in “The American journal of pathology” Distinct β-catenin patterns are linked to cell growth, not cell death, in lung cancer.
40 citations,
May 2016 in “The Journal of Clinical Endocrinology & Metabolism” Young girls whose mothers have PCOS may have higher activity of a specific enzyme that could lead to developing PCOS later.