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 ...

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 ...

Total testosterone measures the full amount of the hormone in your blood, while free testosterone represents the small, ...

Getting a high testosterone reading offers bragging rights for some men of a certain age, and may explain in part the appeal of testosterone supplements. But once you are within a normal range, does ...

This article was reviewed by Felix Gussone, MD. If you’ve been feeling a bit more couch potato than go-getter lately, dragging through the day, snapping at people for no reason, or wondering where ...

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

Testosterone is an important hormone. It helps men develop during puberty, and as they age, it plays a critical role in helping control fat levels, cholesterol, and glucose levels. Testosterone ...