September 2020 in “Hair transplant forum international” The document's conclusion cannot be determined.
July 2020 in “Benha Journal of Applied Sciences” Young men with early hair loss and high SAA3 levels are at higher risk for heart disease.
January 2020 in “Journal of Clinical Dermatology” Treating underlying metabolic and hormonal issues is key to managing female hair loss.
5 citations,
May 2017 in “International Journal of Research in Dermatology” Early onset hair loss in young men is common and linked to family history and alcohol use.
37 citations,
February 2017 in “Anais Brasileiros De Dermatologia” AGA more common in men, increases with age, linked to family history, hypertension, dyslipidemia, and smoking.
January 2015 in “Journal of Clinical Dermatology” 
20 citations,
December 2013 in “Clinical and Experimental Dermatology” Smoking and drinking worsened hair loss in men with genetic hair loss, while eating and sleeping habits didn't; genetics played a bigger role than environment in hair loss.
January 2013 in “Journal of Hubei University of Science and Technology(Medical Sciences)” 
5 citations,
September 2011 in “Pediatric Dermatology” Two young siblings experienced hair loss without hormone issues or other skin problems.
53 citations,
March 2010 in “British Journal of Dermatology” Alopecia common in teens, may indicate endocrine issue, minoxidil effective treatment.
January 2006 in “Journal of Clinical Dermatology” 
72 citations,
March 2005 in “British Journal of Dermatology” AGA can occur in children with family history; early diagnosis and treatment important.
2 citations,
November 2002 in “PubMed” Most patients with hair loss sought treatment for cosmetic reasons, were unhappy about their appearance, and had a family history of the condition, suggesting it may be inherited.
4 citations,
February 1995 in “Journal of Clinical Dermatology” More men than women have hair loss, it's often inherited, and it's linked with higher testosterone levels. There's been a rise in female hair loss patients.