Phthalates are commonly used in plastics, and researchers have now tied them to developmental issues in toddler boys who were exposed to the chemical in the womb.

The new study links the chemicals to emotional and behavioral development issues in 2-year-old boys ...

Men's testosterone levels remain pretty steady until age 70. After that, production of the male sex hormone starts to decline, new research indicates.

This begs the question: Is testosterone loss among seniors really a function of the normal aging process? Or might it reflect other health issues that often confront men as they get older?

Both may be true, say investigators, wi...

Testosterone replacement therapy is safe for most men with heart problems who also have been diagnosed with a low testosterone disorder, a new clinical trial has concluded.

The trial found that testosterone replacement did not raise these patients' incidence of heart attack, stroke or heart-related death in a group of men with both heart problems and hypogonadism -- a condition in which l...

The U.S. Food and Drug Administration is once again warning consumers to avoid muscle-building "supplements" that are anything but a safe alternative to steroids.

In an advisory sent out last week, the agency said it continues to ...

With more American men turning to testosterone therapy as a way to boost energy levels, build muscle and tackle erectile dysfunction, it's no wonder that web-based merchants have stepped into the breach, seeking to grab market share away from doctors and pharmacies.

But are online testosterone purchases safe? No, a new investigation warns.

The conclusion follows an anonymous te...

Men with low testosterone levels may be more likely to have more severe illness when infected with COVID-19, according to a new study.

Treating men who have low testosterone with hormone therapy may reduce their risk of serious illness from COVID, researchers said, but it comes with other risks that doctors and patients will need to weigh.

The investigators analyzed the cases of mor...

Hormone therapy is a common treatment option for prostate cancer, but it may increase the risk of death from heart disease, especially in older men, a new study finds.

Dr. William Dahut, a prostate cancer researcher and chief scientific officer for the American Cancer Society, said the study from Lithuania provides more evidence that starting hormonal therapy requires careful thought, par...

One year of testosterone therapy for men with low levels of the hormone does not appear to increase their risk for heart problems, British researchers found.

"We were unable to find evidence ... that testosterone increases risks of mortality or cardiovascular and/or cerebrovascular [heart and/or stroke] events in the short- to medium-term in men with low testosterone," said study leader D...

Lower levels of sex hormones might be tied to tears of the shoulder's rotator cuff in men and women, a new study suggests.

Among women with low levels of estrogen, researchers found the odds of a rotator cuff tear were 48% higher, compared with women with normal estrogen levels. Among men, the ...

Although Texas Gov. Greg Abbott has deemed it "child abuse," access to "gender-affirming" services cuts the odds of severe depression and maybe even suicide among transgender teens, a new study finds.

Investigators came to that conclusion after tracking the mental health of 104 transgender and nonbinary kids, aged 13 to 20. Over a year, roughly two-thirds received puberty blockers, gender...

TUESDAY, Jan. 18, 2022 (HealthDay Now) -- Advanced forms of hormone therapy are very effective at keeping prostate cancer in check, but they also can double a man's risk of falling into depression, researchers have found.

Prostate cancer patients treated with the latest forms of hormone blockers were twice as likely to develop depression compared with men treated with older forms of hormo...

Transgender people get greater mental health benefits if they start gender-affirming hormone treatment when they're teens instead of waiting until they're adults, a new study finds.

"This study is particularly relevant now because many state legislatures are introducing bills that would outlaw this kind of care for