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 ...

Understanding Testosterone Replacement Therapy and Its Alternatives Clearwater, United States - January 5, 2026 / The ...

For those who need it—men who have low levels of testosterone with symptoms such as low energy, a low libido, and depression, ...

This article was reviewed by Felix Gussone, MD. As the primary male hormone, or androgen, testosterone regulates various aspects of your growth and development as a man. Testosterone plays a central ...

Dr. Jamin Brahmbhatt is a urologist and robotic surgeon with Orlando Health and an assistant professor at the University of Central Florida’s College of Medicine. You’re feeling unusually tired and ...

Testosterone is a naturally occurring steroid hormone. Despite its status as a steroid, prescription testosterone replacement ...

(CNN) — You’re feeling unusually tired and sad, and your interest in sex has dropped off. That’s no fun. If you’re a guy, you may be thinking you have low testosterone. Wait a minute. Don’t we all ...