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

This article was reviewed by Felix Gussone, MD. Key Takeaways: Cholesterol is a key building block for testosterone. Through ...

Sometimes, the body doesn’t produce enough testosterone, a condition known as hypogonadism. You're considered to have a testosterone deficiency or low testosterone (also known as low-T) when your ...

With the prevalent use of opioids in the treatment of acute and chronic pain, the effect on the hypothalamus is often overlooked. Fatigue, low libido and decline in mental function are frequently ...

We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Here’s our process. An at-home testosterone test can help people monitor ...

Around the age of 40, many men notice the first physical changes that may be related to their hormone levels: Energy wanes more quickly, sleep is less restful, and waistlines often expand. This is ...

Advertisements for treatments for “low T,” or low testosterone levels in middle-aged and older men, have led to spikes in demand. But the safety and legitimacy of those testosterone therapies hasn’t ...

Young adult male sitting on a bed with both hands holding his head seemingly having a headache. As men get older, declining testosterone levels are as inevitable as death and taxes. Around the age of ...

Testosterone therapy is on the rise as men seek more energy and vitality, revealing shifting views on aging and modern ...

New York Post may receive revenue from affiliate and advertising partnerships for sharing this content and/or when you make a purchase. RJK Jr. has explored a few controversial ideas, particularly in ...