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

I had my hormones checked at CES 2026 — and it turns out I'm doing great ...

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 ...

Do women have a testosterone problem? Social media influencers believe they do. And with the rise of telemedicine and testosterone replacement clinics opening up across the country, access to the drug ...

Testosterone is the primary androgen (male hormone). While it can help you grow a beard, build muscle mass, and develop a intimacy prowess, testosterone doesn’t skyrocket during puberty and then exist ...

Testosterone, the primary sex hormone in men, plays a vital role in male reproductive development and function, as well as other functions like bone density and muscle mass. Testosterone levels ...

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 ...