💡What TRT Really Does to Estradiol💡 When you start testosterone replacement therapy (TRT), your body naturally converts some of that testosterone into estradiol — a form of estrogen — through a process called aromatization. This isn’t a bad thing. Estradiol actually plays a crucial role in: •Maintaining libido and erectile function •Supporting mood and cognitive health •Protecting cardiovascular health Too little estradiol can cause joint pain, fatigue, low mood, and sexual dysfunction — just