Men don't have monthly fluctuations in their hormone levels, but testosterone levels tend to have 24-hour cyclical patterns that can influence mood and energy.

This article was reviewed by Felix Gussone, MD. What Is Testosterone? The Science Behind Its Impact on Your Body As the ...

Testosterone fuels male sex drive and erectile function and influences everything from bone density and muscle mass to fat distribution, red blood cell production, mood and energy levels.

GLP-1 weight loss medications like Ozempic and Wegovy could increase testosterone levels and help prevent erectile dysfunction in men, according to a new study. While more data is needed, researchers ...

Research indicates GLP-1 receptor agonists, like Ozempic, may elevate testosterone levels in men while promoting weight loss. A study presented at ENDO 2025 showed a significant increase in ...

Differences in hormonal and constitutional parameters between women with at least one first and/or second degree relative with breast cancer (RBC) and women without such affected relatives were ...