Constipation is a problem that has been plaguing mankind since the beginning of time. In every culture on earth, native healers have sought out natural herbs to help fellow tribesmen move their bowels and relieve the misery of constipation. In North America for instance, Native Americans found that the dried, aged bark of the buckthorn tree when brewed as a tea, was an effective laxative to be taken as needed.
When the Spanish later came to the Americas, they called this herbal remedy Cascara Sagrada, meaning sacred bark. So effective was Cascara Sagrada in relieving the universal problem of constipation that it became accepted by Western medicine in the 19th Century, becoming a popular herbal remedy prescribed by local doctors.