What are the adverse effects of excess estrogen in men?
Studies have shown that higher levels of estrogen also result in higher levels of the protein SHBG. This particular protein binds to testosterone, rendering it unusable in the body. This is one of the body’s ways of controlling hormonal balance. When estrogen levels are high, it attempts to decrease production of testosterone and bind existing testosterone (which might turn into even more estrogen.) Excess estrogen also increases your aromatase, which in turn converts even more of your testosterone into estrogen. This is another method your body uses to try to strike a hormonal balance between estrogen and testosterone. In youth, this balancing factor can work fairly well. As we age though, and testosterone levels begin lowering, this process ends up reducing your free testosterone to intolerably low levels.