In practice, Will’s increased T levels have seen his performance in the gym improve massively. Over 28 days he added 10kg to ...

Testosterone is the primary sex hormone in males but also has important functions in females. Natural testosterone supplements and boosters include vitamin D, fenugreek, or ashwagandha. A person with ...

Testosterone levels are at their highest during adolescence and early adulthood. Testosterone levels may start to decline after age 30 years in males and between ages 45 and 55 years in females.

Low testosterone levels in males can lead to erectile dysfunction. They can also affect sleep, mood, the size of the testicles, and more. In both males and females, low testosterone can lead to lower ...

Low testosterone may affect sexual desire and erection ability, with significant effects typically occurring at very low testosterone levels. High testosterone usually doesn’t cause erectile ...

Hypogonadism is common and increases with age in men as serum testosterone levels gradually decline. Estimates of the prevalence of androgen deficiency among men 40–70 years of age range from 12 to 45 ...