Essentially detoxification means cleaning your blood. It does this mainly by removing impurities from the blood in the liver, where toxins are supposed to be processed for elimination. The body also has the ability to eliminate toxins through the kidneys, intestines, lungs, lymph and skin. However, when this system is compromised, impurities aren't properly filtered and every cell in the adversely affected, leaving you with a weak immune system and inability to process nutrients and minerals that are needed to survive and live a healthy life.
Everyone in North America or on a western diet should detox at least once a year and otherwise quarterly. Scientific studies show that to detoxify is beneficial for health.