Aromatization is the process of converting testosterone to estrogens. This process increases with age. Aromatase blockers such as DIM and Chrysin can reduce estrogen levels and enhance testosterone levels. If these fail to increase free testosterone and lower excess estradiol, then consider asking your doctor to prescribe the potent aromatase inhibiting drug Arimidex (anastrozole) in the very low dose of , twice per week. Arimidex reduced estradiol by approximately 70% within 24 hours and by approximately 80% after 14 days of daily use.