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

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 ...

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 ...

Starting around age 40, many men notice the first physical changes that may be related to their hormone levels: Energy wanes ...

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 Lynn Marie Morski, MD, JD. Key Takeaways: Ozempic may help improve testosterone levels in people ...

Regular readers of my column know that I have been very bullish on intermittent fasting, and I regularly receive notes from others who have tried intermittent fasting and benefited greatly. Here is a ...

Testosterone is a pivotal hormone in male development and for masculine characteristics. It's essential for sex drive, muscle growth and strength, and bone density. According to Madison Reeder, ...

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