Since colorectal cancer has become the second leading cause of cancer-related deaths in the United States, according to the Center for Disease Control (CDC), it isn't surprising that colon cleansing has been steadily gaining popularity.  Since many people feel that waste is trapped in their colons and it will become toxic, or even cancerous, if not removed, they feel that colon cleansing is the most important thing they can do to prevent them from developing this deadly disease.