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

Certain healthy foods and supplements may negatively impact testosterone levels when consumed in excess, according to experts ...

This article was reviewed by Felix Gussone, MD. Key Takeaways: Hormones like insulin, cortisol, thyroid hormones, and ...

LA Times Studios may earn commission from purchases made through our links. Most men don’t wake up one morning feeling “low T.” Instead, it’s a gradual drift. A little less drive in the gym, a longer ...

This is read by an automated voice. Please report any issues or inconsistencies here. Most women grow up hearing about estrogen and progesterone like they’re the only two hormones steering the ship.

Genetics play a role in low testosterone for some men, but underlying causes vary widely. Many genes influence testosterone ...