April 2022 in “International journal of respiratory and pulmonary medicine” People with lower levels of free testosterone tend to have worse COVID-19 outcomes.
4 citations
,
August 2019 Higher free testosterone levels can increase bone density and decrease body fat but may raise the risk of prostate cancer, hair loss, and benign prostate enlargement.
56 citations
,
October 1983 in “Archives of Dermatology” Some women with acne have higher levels of free testosterone, which might suggest using hormonal treatments for acne.
10 citations
,
August 2014 in “Skin research and technology” Sleep, testosterone levels, and a specific enzyme activity affect skin oil production in women.
March 2024 in “BMC women's health” The levonorgestrel implant increases free testosterone and lowers SHBG more than DMPA-IM and the copper IUD.
May 2013 in “Journal of the Egyptian Women's Dermatologic Society (Print)” High aldosterone and free testosterone levels link to female hair loss; testing aldosterone may predict hypertension risk.
124 citations
,
March 2012 in “JAMA” Testosterone's muscle-building effects do not require its conversion to DHT.
November 2022 in “Journal of the Endocrine Society” Taking biotin can lead to incorrect low results in free testosterone tests.
43 citations
,
January 2007 in “Gynecological Endocrinology” Finasteride improves acne and hair loss in women with normal testosterone.
6 citations
,
January 2019 in “F1000Research” High triglyceride levels are a key factor affecting testosterone levels in women with PCOS.
July 2020 Increased free testosterone can lead to stronger bones and less body fat but also higher risks of prostate cancer, hair loss, spine issues, and high blood pressure.
8 citations
,
March 2010 in “Gynecological Endocrinology” Free Testosterone Index, bioavailable testosterone, and androstenedione are the most accurate for diagnosing excess male hormones in PCOS.
2 citations
,
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.
1 citations
,
February 2016 in “Journal of Microbial & Biochemical Technology” The Free Androgen Index (FAI) is the best indicator of early hair loss in men before age 30.
November 2021 in “Research Outreach” Low testosterone levels may lead to more severe COVID-19 outcomes.
104 citations
,
June 2014 in “The Journal of clinical endocrinology and metabolism/Journal of clinical endocrinology & metabolism” DHT may increase the risk of heart disease and death in elderly men.
92 citations
,
November 2003 in “The Journals of Gerontology” Testosterone supplements can increase muscle mass and strength in older men with low levels, but long-term effects and risks need more research.
29 citations
,
October 2020 in “eLife” Higher testosterone levels can increase the risk of certain diseases like type 2 diabetes in women and prostate cancer in men, but can also protect against autoimmune diseases and hair loss. It also affects body fat and bone density.
6 citations
,
November 1997 in “International Journal of Dermatology” Women with acne and irregular periods had higher active testosterone levels, which could suggest the usefulness of antiandrogen treatment.
6 citations
,
November 1980 in “Clinical Endocrinology” Measuring plasma testosterone glucosiduronate is a reliable way to detect high male hormone levels in women.
3 citations
,
January 2018 in “Frontiers in bioscience” Daily subcutaneous testosterone effectively restores testosterone levels in men.
July 2021 in “International Journal of Community Medicine and Public Health” Men with type 2 diabetes often have low testosterone and signs of hypogonadism, especially if they are overweight.
September 2008 in “Fertility and Sterility” Free fatty acids may increase androgen production, potentially contributing to polycystic ovary syndrome.
64 citations
,
August 1999 in “The American journal of medicine” The transscrotal testosterone patch normalizes hormone levels in men with AIDS and weight loss but does not improve weight, body mass, or quality of life.
17 citations
,
February 2019 in “Journal of Clinical Medicine” Testosterone replacement therapy should be used for men with low testosterone levels and symptoms of hypogonadism, after careful diagnosis and considering individual needs.
7 citations
,
January 2014 in “Case reports in endocrinology” A woman's excessive hair growth was caused by a rare benign tumor in her adrenal gland, which was successfully removed.
18 citations
,
January 2015 in “Menopause” A 5 mg dose of transdermal testosterone cream effectively restores testosterone levels in postmenopausal women.
7 citations
,
August 2011 in “International Journal of Andrology” The new oral testosterone pill normalized testosterone levels and lowered SHBG in men with low testosterone.
15 citations
,
October 2011 in “Gynecological Endocrinology” Obesity changes androgen levels in women with PCOS, leading to higher testosterone relative to androstenedione.
118 citations
,
April 2010 in “Fertility and Sterility” Most women with PCOS have high levels of male hormones, and free testosterone is the best marker for this.