13 citations
,
December 1991 in “Annals of the New York Academy of Sciences” Researchers created a lab model to study human hair growth, showing it can grow and self-regulate outside the body.
January 2022 in “European journal of anatomy” A man had four testicles, two of which were outside the scrotum and looked like fatty lumps.
7 citations
,
August 2009 in “Applied Mathematics and Mechanics-English Edition” Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
13 citations
,
July 2023 in “Plastic & Reconstructive Surgery Global Open” Women have smaller foreheads and different hairline shapes than men.
12 citations
,
February 1975 in “Journal of Steroid Biochemistry” 31 citations
,
February 2007 in “Journal of Structural Biology” Oxidation changes the structure of hair protein filaments, causing them to compact and rearrange.
April 2019 in “Journal of the Endocrine Society” Mosaic Klinefelter syndrome can affect male fertility and may be missed in routine tests.
11 citations
,
November 2014 in “Behavior Genetics” 1 citations
,
December 2005 in “Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale” Ancient South American mummies' hair shows high sulfur, calcium, and potassium levels.
January 2015 in “Ankara Üniversitesi Tıp Fakültesi mecmuası” Men with severe hair loss may have a higher risk of heart disease.
May 2024 in “Journal of cosmetic dermatology” Low HDL-C, uric acid, and 25-hydroxyvitamin D are risk factors for early-onset male hair loss.
September 1976 in “PubMed” Hirsutism is excessive male-pattern hair growth mainly caused by ovarian hormones, and severe cases may require costly treatment with side effects.
January 2018 in “International Journal of Web Based Communities” People make 'bro-science' baldness treatment videos on YouTube to share experiences, communicate product benefits, and create a community.
November 2025 in “Basic and Clinical Andrology” Male relatives of women with PCOS show similar health issues, suggesting a male version of the condition.
Exercising women with irregular periods have lower thyroid hormone levels and less body fat.
3 citations
,
December 2016 in “Journal of epidemiological research” Estrogen and androgenic hair increase melanoma risk, especially in European-ancestry individuals.
June 2025 in “Skin Research and Technology”
2 citations
,
March 2023 in “Journal of Nepal Medical Association” Many young medical students have early grey hair, especially males, often linked to family history.
1 citations
,
January 1980 in “Computer Physics Communications”
The vitamin D receptor has many roles in the body beyond managing calcium, affecting the immune system, hair growth, muscles, fat, bone marrow, and cancer cells.
March 2026 in “International Journal of Homoeopathic Sciences” Individualized classical homeopathy improved hair growth and quality of life in a man with advanced hair loss.
104 citations
,
May 2003 in “Endocrinology” Lampreys have a functional vitamin D receptor that may help detoxify harmful substances.
12 citations
,
January 2016 in “Endocrinology, diabetes & metabolism case reports” Testosterone therapy improved physical and social health in a male with 49,XXXXY syndrome.
6 citations
,
November 2017 in “Scientific reports” The R343H mutation in the VDR gene causes vitamin D-resistant rickets with alopecia by impairing specific gene activity.
January 1993 in “Inpharma Weekly” A new food supplement was highly effective in curing hair loss in young men.
1 citations
,
January 2009 in “Journal of Clinical Dermatology” More men have Androgenic Alopecia than women, it's often inherited, and stress can contribute to it.
April 2012 in “The Journal of Urology” Eating more omega-3 and less omega-6 fatty acids may lower the risk of developing prostate cancer.
October 2002 in “Dermatologic Surgery”
Hirsutism in women is linked to PCOS and can cause health issues if untreated.
October 2025 in “Journal of the Endocrine Society” Early physical exams are crucial for timely Klinefelter syndrome diagnosis.