As the US military moves forward with plans to routinely measure testosterone in male servicemembers aged ≥ 30 years, a cross-sectional study of Army soldiers suggests about one-third of men in that age group have levels considered to be low.

"Our review found that the available evidence is limited and insufficient to determine the effect of testosterone therapy on cognition in women during the menopause transition and

The findings highlight the importance of personalized testosterone treatment rather than a one-size-fits-all approach.

The hormone is used off-label to help postmenopausal women with their sex drive. But new evidence sheds light on potential risks that are worth investigating.

Testosterone is the main sex hormone for men. While it's most known for its role in sexual health, testosterone also plays a vital role in maintaining muscle mass, strength, and bone density, in addition to supporting mood and cardiometabolic health.

Where fat is stored in the body can impact testosterone suppression. In a new study, age explained only 2.5% of the variation in circulating estrogen, while adiposity explained 18%-20%.

The military’s focus on hormones comes amid a broader MAGA fixation on testosterone as a cure-all for men’s physical and psychological woes.

Obstructive sleep apnea does more than interrupt breathing. Sleep fragmentation, intermittent oxygen deprivation, and metabolic dysfunction may influence testosterone regulation, making sleep quality an important consideration in men's hormonal health.

But what if meat actually lowers the very thing many men consider to be the ultimate measure of masculinity? Research suggests men might want to instead turn their attention to what they’re eating for dinner.

American men are facing a crisis in plummeting testosterone levels — at least according to several top Trump administration officials. But experts say there is key context that is being left out

A pooled analysis of more than 26,000 men found that those with the lowest testosterone levels faced an 18% higher risk of dying from cancer than men with the highest levels. The data came from 11 long-running studies in Australia,