Last year some of us did a little research in this area with parasites manipulating emotions with some interesting articles. It may help to do a search on the subject.
Not only are you uprooting parasites, you are also disturbing cellular emotions from within the intestines. One thing to keep in mind is that whenever any kind of heavy intestinal cleanse occurs, it will stir up old emotions that have been lying dormant. They can surface all at once by showing up as anxiety, depression, anger or whatever. Remember that the gut or 2nd chakra area has always been referred to as the "seat of emotions." Try looking into Triphala which is a combination of herbs to help counter-balance strong emotions. Also, it can assist with moving physical junk out of the digestive tract. Skullcap is good one for calming the mind and mental activity.
The brain and the colon contain the same type of grey matter; I believe research will prove that these 2 things are closely related in many ways. Ryger's first-hand account about his parasite cleans was interesting to note. He stated that before all the parasites left his body he felt agitated, aggressive and had other weird emotions. He noted a marked difference (mentally) when they cleared from his body. Lyme disease has also been known to have emotional effects upon people's emotions too.
Since the brain the the colon have the same substance, this makes sense to me. Therefore, if we can keep a clean body (particularly the gut), our minds can be clean or more pure in thought. Perhaps this is the true lesson for all of us.
Now... only if we can get the war mongers, dictators, and ego-driven leaders on parasite cleanse! Parasites, cruelty and wars have been the blight upon mankind for centuries and there is a very good possibility that these things go hand-in-hand. Imagine a more loving world because we got rid of the critters from our bodies -- one step closer to true world peace, an attainable goal for the future! :)
Instead of signs refuting wars...how about...NO MORE PARASITES. LOL