Testosterone is arguably one of the most essential hormones for supporting men’s health. It plays a role in supporting intimate, bone, muscle, and mental health. Testosterone levels that are higher or ...

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 ...

Three forms of testosterone are found in serum: sex hormone-binding globulin (SHBG)-bound (60%-70% of total), albumin-bound (20%-30% of total), and free (1%-3% of total). SHBG-bound testosterone is ...

The guys in your local gym have been peddling it for years as essential for muscle growth. But in the past two decades, prescriptions for testosterone therapy (sometimes called TRT) have doubled. And ...

We also know that within normal ranges, testosterone levels are not strongly predictive of aggression. In the amygdala, a ...