Waste material, especially that which has remained in the colon for some time, (i.e. impacted feces, dead cellular tissue, accumulated mucous, parasites etc.), poses several problems, First this material is quite toxic (poisonous). These poisons can re-enter and circulate in the blood stream making us feel ill, tired or weak. Second, impacted materials impair the colon's ability to assimilate minerals and bacteria produced vitamins, And finally, a buildup of material on the colon wall can inhibit muscular action causing sluggish bowel movements and constipation.