This article is very informative. Thank you- My problem is constipation b/c of a sedentary life style somewhat, and certain drugs that cause constipation and quick dehydration if I am, say, outside on a hot day. #2. I am a big olive oil user, (have no gall bladder anymore) but too many times I have been caught outside and felt a full bowel that is pressing to evacuate-but I cannot pass it-like it's stuck-won't budge and it hurts. So I suffer until I'm home. Then I am forced to use an enema for evacuation.I'm ready to carry an enema with me already.