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A study published in the American Journal of Human Biology suggests that Western medical standards for male testosterone ...

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 ...

New U.S. dietary guidelines for the first time include advice for men on maintaining healthy testosterone levels.

Popular weight loss medications like Ozempic can help reverse low testosterone levels in men with obesity or Type 2 diabetes, according to new research. Building on previous studies that show weight ...

Lower iodine concentrations in the urine was independently associated with higher testosterone levels, a cross-sectional study found. Looking at nearly 3,000 U.S. men, those with lower urinary iodine ...

A small study by the University of Worcester found high-protein diets may decrease men's testosterone levels. Researchers fed 309 subjects a diet heavy in meat, fish, eggs, and protein shakes for ...

A viral Twitter post from April 9 claims testosterone levels have dropped by almost 50% over the past 20 years. "Here's a cheery Friday fact," reads the post. "An average 22 year-old (sic) male today ...

Please provide your email address to receive an email when new articles are posted on . Associations between sleep duration and serum testosterone vary by age and sex. Sleep quality was not associated ...