Proper elimination is extremely important for a healthy body. If you don't have a bowel movement every day, you're probably constipated. Constipation can be a result of several factors, including a lack of enzymes and good bacteria in the gastrointestinal system, dehydration, lack of dietary fibre, stress, and ignoring your natural urges.
Being constipated can wreak havoc on your immune system because the toxins that your body would normally get rid of can be released back into the system. This is basically like poisoning yourself! Proper elimination does not start in the colon, your entire digestive tract has to work in synchronized balance.