The testicles and ovaries produce testosterone. Producing too little or too much testosterone can affect your physical and mental health. Testosterone is a hormone found in humans, as well as in other ...

Testosterone levels are at their highest during adolescence and early adulthood. Testosterone levels may start to decline after age 30 years in males and between ages 45 and 55 years in females.

Sheffield Hallam University provides funding as a member of The Conversation UK. Testosterone is the main sex hormone in men. It’s best known for its role in the development of male sexual ...

Testosterone tests measure levels of testosterone in the blood. At-home test kits can be convenient, but they cannot diagnose underlying health conditions that cause high or low testosterone. Share on ...

Welcome to Testosterone HQ—Men's Health's guide to the exciting, complicated, and revolutionary world of testosterone. For everything you need to know about T, click here. Testosterone is a hormone ...

Testosterone is the main sex hormone in men. It’s best known for its role in the development of male sexual characteristics and physical features, but there are also many surprising and lesser known ...

If you have low testosterone, it could affect your sex drive. But low testosterone might not be the only reason to blame if you have no libido. iStock/Getty Images You have low testosterone when your ...

Testosterone is the primary sex hormone in males but also has important functions in females. Natural testosterone supplements and boosters include vitamin D, fenugreek, or ashwagandha. A person with ...

Severine Lamon receives funding from the Australian Research Council (ARC) and the International Olympic Committee (IOC). Testosterone is the major androgenic (male) hormone and one of the most common ...

High testosterone in women can cause unwanted facial hair, acne, and irregular menstrual cycles. Polycystic ovary syndrome (PCOS) is the most common cause of high testosterone in women. If you have ...

Testosterone is a male sex hormone that is important for sexual and reproductive development. The National Institutes of Health regards testosterone as the most important male hormone. Women also ...