Testosterone

Testosterone is a steroid hormone from the androgen group. In mammals, testosterone is primarily secreted in the testes of males and the ovaries of females, although small amounts are also secreted by the adrenal glands

Testosterone Physiological Effects

Testosterone is the principle male sex hormone and is responsible for reproductive growth and development in male vertebrates.

Testosterone Biochemistry

What is Testosterone?

Testosterone Mechanism

Testosterone Treatments

Testosterone Replacement Therapy for Men: Risks and Benefits

Latest Testosterone News and Research

Study finds 24-hour fasting cycles enhance libido in male mice

Long-term fasting in 24-hour cycles increases the sex drive of male mice by lowering the concentration of the neurotransmitter serotonin in the brain.

28 Mar 2025

Study explores how sex chromosomes and hormones influence immune responses

Women have a higher proportion of key immune cells between puberty and menopause, which may be linked to the sex hormone estrogen and explain why they are less susceptible to certain infectious diseases than men, according to a new study led by researchers at UCL.

27 Mar 2025

Young men with late puberty have healthier fat-to-muscle ratios

Later puberty in young men is linked to lower bone volume and lean mass, but a healthier body composition. Earlier puberty leads to higher bone density and slightly higher BMI and fat mass.

20 Mar 2025

AI predicts biological aging using steroid pathways

Researchers discuss a novel method to predict biological aging using a deep neural network based on pathways of steroidogenesis.

19 Mar 2025

$1 million CPRIT grant focuses on AI to improve prostate cancer outcomes

Erzsébet Merényi, a statistics research professor at Rice University, and co-investigators at The University of Texas MD Anderson Cancer Center Pratip Bhattacharya, professor of cancer systems imaging, and Dr. Patrick Pilié, assistant professor of genitourinary medical oncology, were awarded $1 million by the Cancer Prevention and Research Institute of Texas (CPRIT) to develop artificial intelligence (AI) tools that can identify lethal forms of prostate cancer earlier and improve treatment selection.

18 Mar 2025

Progressives seek health privacy protections in California, but Newsom could balk

When patients walked into Planned Parenthood clinics, a consumer data company sold their precise locations to anti-abortion groups for targeted ads.

14 Mar 2025

In Trump’s team, supplement fans find kindred spirits in search of better health

President Donald Trump's health officials want you to take your vitamins.

13 Mar 2025

Would you know if something was wrong? This breakthrough device helps men detect silent health risks

Thursday, 13 March 2025 is World Kidney Health Day, with this year’s theme being "Are Your Kidneys OK? Detect Early, Protect Kidney Health".

12 Mar 2025

Hormones may drive the differences in opioid misuse between men and women

The opioid epidemic has claimed more than half a million lives in the U.S. since 1999, about three-quarters of them men, according to the National Institutes of Health.

10 Mar 2025

Study explores how cultural environment affects PTSD and hormonal responses

According to the World Health Organization, about 3.9% of the world's population has had post-traumatic stress disorder at some point during their lives. That number is higher in the United States, at about 6%.

2 Mar 2025

New review maps the impact of reproductive hormones on neurological health

A comprehensive review published today in Brain Medicine by leading neuroendocrinologist Professor Hyman M. Schipper from McGill University's Department of Neurology and Neurosurgery maps out the extensive influence of reproductive hormones on neurological health and disease.

18 Feb 2025

Testosterone treatment can save lives for men with Klinefelter syndrome

Testosterone treatment significantly reduces mortality among men with Klinefelter syndrome. Researcher calls for changes in guidelines to ensure more patients receive the necessary treatment.

13 Feb 2025

Testosterone found to worsen heart attack damage

Testosterone worsens the damage caused by a heart attack by increasing the number of white blood cells released from the bone marrow.

6 Feb 2025

$Mental health factors key to recovery in older adults with hip fractures$

Mental health factors key to recovery in older adults with hip fractures

New research to identify factors associated with improved outcomes for older adults recovering from hip fractures found a connection with mental health and psychological resilience.

31 Jan 2025

How lifestyle-based interventions help manage PCOS

Studies indicate that lifestyle modifications can alleviate PCOS symptoms, improving insulin resistance and hormonal balance through diet and physical activity.

21 Jan 2025

Study unveils role of TLE6 in male sperm development

Infertility is a major global challenge associated with physiological and psychological impact. Genetic mutations that affect early embryonic development, oocyte (egg cell) maturation, and fertilization have recently been studied as causes of infertility.

16 Jan 2025

Could mulberry extract be the key to fighting obesity-induced reproductive dysfunction?

Research indicates mulberry extract's efficacy in addressing obesity-related male infertility, enhancing reproductive outcomes through bioactive compounds.

16 Jan 2025

Exploring the link between physical strength and sexual behavior in humans

While many studies have looked at possible evolutionary links between men's strength and sexual behavior, a Washington State University study included data on women with a surprising result. Women, as well as men, who had greater upper body strength tended to have more lifetime sexual partners compared to their peers.

15 Jan 2025

Hormonal changes after menopause impact multiple sclerosis severity

A new study by UC San Francisco has found that menopause revs up the progression of multiple sclerosis (MS).

10 Jan 2025

The X factor: Decoding brain aging differences between men and women

Researchers unveil how biological sex influences brain aging, revealing genetic, hormonal, and molecular mechanisms behind cognitive resilience and decline.

9 Jan 2025