421 citations
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April 2012 in “The New England Journal of Medicine” Alopecia Areata is an autoimmune condition causing hair loss with no cure and treatments that often don't work well.
405 citations
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May 2007 in “Journal of The American Academy of Dermatology” Obesity affects skin health, causing conditions like acanthosis nigricans and may require different treatment approaches.
393 citations
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November 2000 in “Archives of General Psychiatry” Testosterone is important for men's sexual function, may help some women's sexual desire, while other hormones and neurotransmitters also play complex roles in sexual behavior.
384 citations
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June 2005 in “Genes & development” β-catenin is essential for stem cell activation and proliferation in hair follicles.
370 citations
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September 1999 in “The New England Journal of Medicine” Finasteride and minoxidil are effective for hair loss, but continued research is needed for better treatments.
359 citations
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September 2017 in “European Journal of Epidemiology” The Rotterdam Study updated findings on elderly health, focusing on heart disease, genetics, lifestyle effects, and disease understanding.
354 citations
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February 2011 in “Genes & Development” EZH1 and EZH2 are crucial for healthy hair growth and skin repair.
349 citations
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January 2005 in “The FASEB journal” Human skin can make serotonin and melatonin, which help protect and maintain it.
343 citations
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December 2008 in “Endocrine Reviews” Metformin helps with menstrual cycles and insulin levels in PCOS but is less effective for hair growth, diabetes prevention, and weight loss, and may improve fertility and reduce diabetes risk.
336 citations
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August 2015 in “European Journal of Epidemiology” The Rotterdam Study found risk factors for elderly diseases, links between lifestyle and genetics with health conditions, and aimed to explore new areas like DNA methylation and sensory input effects on brain function.