We've heard Dr. Zava call it the "angel of life, and the angel of death." Too much can be hazardous. Too little can be problematic also.
Not many people realize this, but estrogen plays a role in more bodily functions than just reproduction. In fact, estrogen has many important functions in the brain.
Studies show that decreasing levels of estrogen can cause two of the most common perimenopause symptoms – hot flashes and mood fluctuations. Curious how this happens? Read on to learn the details of this biochemistry.