Most women see a significant drop in estrogen and testosterone during menopause, while many men may experience a similar phenomenon relating to testosterone, known as andropause or more commonly as Low T (low testosterone). Hormonal imbalances occur when there is too much or too little of a hormone in the bloodstream. Hormones are important for regulating most major bodily processes. Because of their essential role in the body, even the smallest hormonal imbalance can cause side effects throughout the body.