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 Treatments

Testosterone Biochemistry

Testosterone Replacement Therapy for Men: Risks and Benefits

What is Testosterone?

Testosterone Mechanism

Latest Testosterone News and Research

Semaglutide for weight loss was linked to a sharp drop in alcohol use in this case report

A 2026 case report describes a 34-year-old man with obesity and alcohol use disorder whose semaglutide treatment for weight loss was associated with a marked drop in drinking over 10 months, with his AUDIT score falling from 27 to 7 and alcohol use dropping from about 15 drinks per week to half a beer per month. The authors frame this as a promising but preliminary finding that adds to growing evidence on GLP-1 drugs and alcohol use, while also stressing that this was a single case and that better AUD screening in family medicine remains important.

2 Apr 2026

Testosterone level is not always the key to male wellbeing

The connection between testosterone and well-being is weaker than many people think. Although there are clear health connections, a higher testosterone level is not always the key to well-being, according to a thesis at the University of Gothenburg.

31 Mar 2026

Time-restricted eating improves hormone levels in women with PCOS

Polycystic ovary syndrome, or PCOS, affects as many as 18% of all childbearing-age women. The condition occurs when a woman's body produces too much of a group of hormones called androgens, chiefly testosterone. Menstrual irregularity, obesity and even infertility can result.

30 Mar 2026

Early testosterone surge triggers rare muscle disease

Spinal and Bulbar Muscular Atrophy (SBMA) is a rare inherited disease that causes progressive muscle weakness and wasting in men.

27 Mar 2026

UPFs before conception may shape fertility and embryo growth

Findings show ultraprocessed food consumption before conception influences fertility and embryonic development, urging further research in this area.

26 Mar 2026

Estradiol patches as effective as injections for locally advanced prostate cancer

Hormone patches are as good at controlling locally advanced prostate cancer as the injections typically used to deliver hormone therapy, according to the results of a large clinical trial led by UCL (University College London) researchers.

25 Mar 2026

Researchers identify mechanism explaining chemical disruption of sex hormones

Researchers at the University of Oulu have identified a previously unknown mechanism in humans that may explain why certain medicines and environmental chemicals disrupt the balance of sex hormones.

11 Mar 2026

Low testosterone and high fructose intake can worsen fatty liver disease

Low testosterone in itself can cause a variety of health problems, but the addition of a poor diet can exacerbate certain conditions. Metabolic dysfunction-associated steatotic liver disease (MASLD) is one example that approximately 40% of adult men worldwide currently suffer from and has become a global problem.

11 Mar 2026

Low baseline testosterone predicts aggressive prostate cancer progression risk

A new study led by researchers at The University of Texas MD Anderson Cancer Center found that prostate cancer patients with low testosterone levels may have a higher risk of cancer progressing to a more aggressive form while under active surveillance.

10 Mar 2026

Machine learning detects early brain changes linked to Alzheimer's disease

Worcester Polytechnic Institute (WPI) researchers have used a form of artificial intelligence (AI) to analyze anatomical changes in the brain and predict Alzheimer's disease with nearly 93% accuracy.

5 Mar 2026

Combination therapy may help overcome barrier in early-stage prostate cancer treatment

A multi-institutional study led by Mayo Clinic and published in Cell Reports Medicine reports that pairing a next-generation immunotherapy with standard hormone therapy before surgery may help overcome a long-standing barrier in early-stage prostate cancer treatment.

26 Feb 2026