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 ...

This article was reviewed by Darragh O’Carroll, MD. Key Takeaways: Testosterone’s reputation for causing anger and aggression ...

Researcher points to ‘medicalisation of masculinity’ after investigating how men’s health is being monetised online ...

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 ...

NEW YORK (Reuters Health) - A new oral testosterone undecanoate formulation can restore testosterone concentrations to normal in hypogonadal men, researchers report. "Effective as other testosterone ...

DEAR DOCTOR K: I’m a 68-year-old man who has been feeling more tired and less “sexy” over the past several months. My doctor says my blood testosterone level is normal, but “low normal” — a little bit ...

Dear Doctor K: I'm a 68-year-old man who has been feeling more tired and less "sexy" over the past several months. My doctor says my blood testosterone level is normal, but "low normal" — a little bit ...