Aging cell2026n = 101 men total (23 young, 57 older normal testosterone, 21 older low testosterone)
Cross SectionalHuman
This study looked at whether low testosterone in middle-aged and older men is tied to worse blood vessel health through effects on mitochondria, the tiny power plants inside cells. Researchers…
Clinical nutrition research2026n = 4,819
Cross SectionalHuman
This study looked at whether vitamin D levels are linked to metabolic health, measured by the TyG index (a score from fasting blood sugar and triglycerides that flags insulin resistance,…
Nutrients2025n = 225
Cross SectionalHuman
This study set out to explore how trace elements in the blood might relate to testosterone levels and symptoms like low energy, mood issues, and sexual health in young men.…
Journal of clinical medicine2024n = 73
Cross SectionalHuman
This study set out to see how lifestyle and insulin resistance relate to male fertility. Insulin resistance means the body has stopped responding properly to insulin, so it takes more…