Functional medicine expert Dr. Mark Hyman explains in this 7-minute video that women can avoid or lessen the effects of PMS (pre-menstrual syndrome) by addressing the causes of the hormonal imbalance. He says more than 75% of women think PMS is a normal part of being a women. But it doesn’t have to be. It’s not bad luck, but bad habits, environmental toxins and stress. Watch this, adopt new healthy habits and PMS can be a thing of the past.