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

New AI test identifies prostate cancer patients who benefit from abiraterone

A new artificial intelligence (AI) test can identify which men with prostate cancer will benefit most from the life-extending drug abiraterone, in clinical trial results presented by scientists from UCL and the Institute of Cancer Research.

30 May 2025

Unlocking the secrets of human longevity and healthy aging

Human healthy aging and longevity are complex phenomena influenced by a dynamic interplay of genetic, epigenetic, metabolic, immune, and environmental factors.

22 May 2025

Discovery unravels two populations of gonadotrophs in the pituitary gland

Researchers at the Francis Crick Institute have shown that gonadotrophs, cells in the pituitary gland with a key role in puberty and reproduction, come from two different populations, with the majority produced after birth rather than in the embryo, as previously thought.

21 May 2025

Sucralose disrupts male fertility by damaging sperm and altering hormones in animal study

Researchers found that chronic sucralose exposure in male rats disrupted reproductive hormones, damaged sperm, and impaired testicular function through oxidative stress and autophagy dysregulation. These findings raise concerns about the reproductive risks of high sucralose intake and its persistent presence in the environment.

19 May 2025

$Testosterone gel fails to boost recovery after hip fracture in women$

Testosterone gel fails to boost recovery after hip fracture in women

Hip fractures, often a result of a fall, are the most serious type of osteoporotic fracture because they are accompanied by considerable pain, loss of muscle and bone strength, reduced mobility and independence with daily activities, and increased risk for future fractures and death.

15 May 2025

Advanced microscopy reveals how hormonal fluctuations shape the brain

Hormone levels fluctuate like the tides, ebbing and flowing according to carefully orchestrated cycles.

13 May 2025

Testosterone use not linked to increased gynecological cancer risk in early years

Transmasculine and gender-diverse individuals who use testosterone are not at increased risk of gynecological cancer in the first years of hormone therapy.

12 May 2025

Maternal testosterone levels shape boys' activity and girls' strength by age 7

Boys born to mothers with PCOS or high third-trimester testosterone levels are less physically active at age 7, particularly on weekends. Girls exposed to high prenatal testosterone show reduced muscle strength but not lower activity levels.

10 May 2025

Low phosphate levels may help explain male infertility, study finds

Men with fertility problems were significantly more likely to have low blood phosphate levels, a mineral essential for energy and reproductive function. Researchers found lower phosphate was linked to poorer sperm motility, suggesting a possible pathway for new fertility treatments.

10 May 2025

Progesterone-only contraceptive pill linked to increased asthma attacks in some women

A major study of around 260,000 women shows that taking the progesterone-only contraceptive pill can increase asthma attacks in some women.

7 May 2025

Low testosterone linked to higher kidney stone risk in men, study finds

A large cross-sectional study in South Korea found that men with low testosterone levels (below 3.33 ng/mL) were significantly more likely to have kidney stones. This association held even after adjusting for age and metabolic risk factors, suggesting testosterone may play a protective role.

6 May 2025

Seasonal air pollution found to undermine IVF success

Exposure to fine particulate matter during fertility treatment windows—especially in winter—negatively impacts pregnancy and live birth rates

17 Apr 2025

Gut bacteria turn bile acids into allies against cancer

Bacteria naturally present in the human intestine, known as the gut microbiota, can transform cholesterol-derived bile acids into powerful metabolites that strengthen anti-cancer immunity by blocking androgen signaling, according to a preclinical study led by Weill Cornell Medicine investigators.

16 Apr 2025

Low vitamin D levels damage erectile health via superoxide surge, study finds

Vitamin D deficiency directly causes erectile dysfunction by increasing superoxide and reducing protective SLPI levels, as shown in human tissue and animal models. This breakthrough reveals why low vitamin D may lead to poor sexual health and resistance to standard ED treatments.

15 Apr 2025

Gut bacteria and blood metabolites directly affect children’s height, study finds

Researchers used Mendelian randomization to uncover causal links between gut microbiota, blood metabolites, and short stature in children.

7 Apr 2025

Exploring the relationship between testosterone and men's health

The review article titled"Testosterone and men's health: An in-depth exploration of their relationship", was published on February 18, 2025 in UroPrecision.

2 Apr 2025

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