Aromatization is the body's process of turning testosterone into estrogen in an attempt to maintain the ideal testosterone/estrogen ratio in homeostasis, however truth be told, the aromatase enzyme responsible for this is one that many people, and definitely men, would benefit from lowering. Aromatase activity increases with age (just as testosterone decreases with age). Fatty tissue deposits, poor nutrition, alcohol, high stress and lack of exercise also increase it. Learn how to get a handle on your aromatase levels so you don't fall into estrogen dominance, with decreased muscle mass and increased body fat. Find out the top 10 foods to keep aromatase at bay.