Hi there...well, this is my view anyhow, or one that I believe...

The body is very adaptable and able to handle toxins and stress for a little while. That is 'handle' in the sense of, we don't know anything is amiss and feel well. We can be unwell without being aware of it for a very long time. Often people believe they suddenly got sick. That's not true, it's been there for a very long time, much before the overt signs of disease have occured. Diseases like atherosclerosis are called "silent killers". We feel well and don't know we are not. But actually, there are signs, we just ignore them. There are lots of early signs for many types of illness. But we often think nothing of them because we 'feel fine' in general.

Anyway, with time, the stressors to our body start really wearing us done, compromising our immunity, clogging up our lymph and blood and organs. The cells of the body have more and more difficulty carrying out their activities that keep us alive. Depending on the extent of infection and other variables (diet, lifestyle, environmental sources), our immune system can't overcome it anymore, our body has difficulty expelling it's own wastes from metabolism. We start to drown in our own waste. This is the start of disease. It is not so much what gets us from outside, it's our ability to detoxify. But it's a vicious cycle, because the more infection can take hold, the more toxicity and 'cell suffocation' there is, which breaks the body down further and allows more 'outside' harm in. That's the basic premise of disease. And we can be sick while feeling alright for a while, but it will catch up with us.

So it's not just that there are parasites (which will start to cause enough trouble just on their own) it's that it compromises our health. And, just as important, it's not simply about getting rid of them, it's bringing the body back to a state where parasites won't invade. If people only focus on trying to kill parasites they won't get very far ultimately, because in no time at all more will come back. You have to clean the environment too.