3 citations
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March 2019 in “Post Reproductive Health” Testosterone replacement can help menopausal women with various symptoms, but should be used carefully and is not yet officially licensed in the UK for women.
103 citations
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December 2021 in “Journal of biological rhythms” Shift work disrupts the body's natural clock, leading to health problems.
42 citations
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May 2016 in “Annual Review of Cell and Developmental Biology” Fat cells are important for tissue repair and stem cell support in various body parts.
24 citations
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December 1988 in “British Journal of Dermatology” Acne severity in women may not be linked to increased male hormone indicators like excess body hair, menstrual irregularities, or hair loss.
2 citations
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September 2020 Long-term high testosterone levels can improve bone density and reduce body fat but may increase the risk of prostate cancer and high blood pressure.
February 2009 in “Springer eBooks” Pregnancy can cause more body and scalp hair growth and make nails brittle, but these changes often revert after giving birth.
13 citations
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January 2015 in “International Journal of Trichology” Higher lead and cadmium, and lower zinc and iron levels in the blood might be linked to chronic hair loss in women.
7 citations
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January 2001 in “Annales de zootechnie” Melatonin treatment increases wool production and improves fiber quality in angora rabbits.
17 citations
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May 2019 in “Diabetes and Metabolic Syndrome: Clinical Research and Reviews” High fasting insulin levels in women with PCOS are linked to a higher risk of heart and metabolic problems.
9 citations
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January 2005 in “Experimental Dermatology” Human hair follicles can produce stress hormones like the body's main stress response system.
4 citations
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June 2002 in “Veterinary Dermatology” Prenatal retinoic acid exposure increased cell proliferation in mouse hair follicles without affecting their development.
3 citations
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May 2016 in “Dermatology Online Journal” Changing estrogen levels during menopause might affect genes related to body rhythms and cause increased hair loss.
August 2025 in “Chronobiology International” Irregular sleep and disrupted body clocks can lead to more hair loss in young adults.
Topical minoxidil helps treat hair loss in teens, but more research needed for safe options.
September 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Male-pattern baldness has a weak link to heart disease and some related health conditions.
5 citations
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March 1992 in “PubMed” Arsenic levels in rat hair reflect arsenic intake and accumulation in the body.
1 citations
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October 2024 in “FARMACIA” Low levels of zinc and selenium in the body are linked to a higher risk of cataracts.
November 2025 in “Contraception” COC use doesn't increase hair stress hormone levels, but hair treatments may affect results.
November 2022 in “Journal of Investigative Dermatology” Deleting MPZL3 increases skin oil production and reduces body fat.
53 citations
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May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
17 citations
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May 2014 in “Cell transplantation” Genetically modified stem cells from human hair follicles can lower blood sugar and increase survival in diabetic mice.
3 citations
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September 2014 in “SpringerPlus” Human hair loss may have evolved to help increase brain size.
February 2013 in “Journal of the American Academy of Dermatology” Certain gene variations may increase the risk of alopecia, and platelet-rich plasma treatment can improve hair density in those with hair loss; a rare case of facial Becker's nevus was linked to uneven beard growth.
January 2013 in “Food science and technology research” Green tea extract may increase copper levels in mouse hair without affecting liver copper.
17 citations
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June 2012 in “The Anatolian journal of cardiology” Premature hair graying may be a sign of increased risk for heart disease, indicating biological age is more important than actual age.
1 citations
,
August 2012 in “Food Science and Biotechnology” The essence made from fermented products increased hair growth in mice better than minoxidil.
April 2019 in “Journal of Investigative Dermatology” Removing REDD1 in mice increases skin fat by making fat cells larger and more numerous.
12 citations
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March 2000 in “Clinical Chemistry” Chronic DHEA supplementation slightly increases testosterone in hair but stays within safe limits.
December 1990 in “PubMed” Some drugs can cause hair loss, increase hair growth, or change hair color, but stopping the drug usually reverses these effects.
32 citations
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January 2018 in “American Journal of Clinical Dermatology” Hormone therapy affects hair growth in transgender individuals, with testosterone potentially causing hair loss in trans men and estrogen reducing facial/body hair in trans women; treatment options vary.