Call it the feminine hormone. Known to encourage femininity, strengthen feelings of intimacy, and boost libido, estrogen is also linked to your general state of well-being. Produced in the ovaries and adrenals, it not only fosters female health, it also supports all of your connective tissues, including the status of your complexion. Healthy levels of estrogen can make you feel fantastic from head to toe (in part because it works in connection with the “feel good” brain chemical serotonin). Too little estrogen, however can generate irritability and general moodiness, anxiety, and insomnia, while too much can exacerbate premenstrual symptoms and lead to a plethora of complications, including fatigue and weight gain.