Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, ...

What are normal testosterone levels by age? An older photographer mentors a younger one. Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical ...

Normal testosterone levels in men might be protective against severe COVID-19, a retrospective cohort study suggested. Among 723 men with a mean age of 55, those who had hypogonadism had a higher risk ...

Understanding Testosterone Replacement Therapy and Its Alternatives Clearwater, United States - January 5, 2026 / The ...

Certain healthy foods and supplements may negatively impact testosterone levels when consumed in excess, according to experts ...

Certain health conditions can make it difficult for some men to have normal levels of testosterone. Low testosterone levels, also known as hypogonadism, can affect a person’s life, can cause different ...

Men with low testosterone who develop COVID-19 are at elevated risk of becoming seriously ill and ending up in the hospital, according to a study by researchers at Washington University School of ...

Regular readers of my column know that I have been very bullish on intermittent fasting, and I regularly receive notes from others who have tried intermittent fasting and benefited greatly. Here is a ...

For more than 80 years, men have been told that testosterone helps prostate cancer grow. But a very different picture has emerged over the past two decades.

Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical role in helping control fat levels, cholesterol, and glucose levels. Testosterone ...