LEF Article: http://www.lef.org/LEFCMS/aspx/Print...x?CmsID=116093 Wow #1: men with the highest blood levels of estradiol had a 2.2-fold greater risk of stroke compared with those whose estradiol levels were lower [...] This study revealed that estradiol blood levels greater than 34.1 pg/mL resulted in this more than doubling of stroke incidence. Life Extension long ago warned men to keep their estradiol levels below 30 pg/mL ...