The colon is an organ that is part of the digestive tract in the body. It’s often called the large intestine or the large bowel. When food enters the body, it's digested mostly in the small intestine, where vitamins and minerals are taken out. After that, the food moves into the colon. The colon takes out water, and bacteria in the colon help break down the food to prepare it to leave the body. A healthy colon basically functions as the "cleanup" crew of the body.
In addition to all of the problems we've already discussed, a sluggish bowel also has a major health impact on another body system: your lymph. Think for a moment, if you will, of your colon as your body's drain pipe. If the drain is clogged, not only will waste not be eliminated, but when you flush the toilet, the drain backs up and spills over befouling the entire bathroom. And that's exactly the point which leads us to a discussion of waste removal from the body and the lymph system.
It also uses more neurotransmitters to digest and process this junk food, leading to an imbalance in your “feel good” hormones, if not a deficiency. When you are under stress, these hormones are signaled by the brain to “speed up” and this chemical surge causes everything from anxiety, insomnia, trouble swallowing, and the “butterflies” in your stomach, to diarrhea, cramping, and neurotransmitter deficiencies. Colon cleansing: a popular, but misunderstood natural therapy