Thanks for the reply, it's helped me to clarify my vague question...

What I'm curious about is the body's tolerance to it's healing properties (like fighting cancer). I should have been more specific with my question. All we know is that for some things it does seem to work, but how well and for how long is still unclear.

I'm thinking that there's just not enough information yet to know about medicinal tolerance. I just can't consider the relaxing, pain killing, and appetite stimulating effects of it as "medicinal"... those are more like physiological side effects to me which are still very beneficial. (side effects may include numbness to pain, drowsiness, increased appetite, etc. lol)....

For most of the things that cannabis seems to be used for is to treat symptoms. It's also used for directly treating ailments although they can't always be directly felt/measured by the patient (you can't feel the level of your own immune system, or feel the levels of brain chemicals, etc).... we're only aware of the changes within our body by the alleviation of symptoms over time; just because the pain goes away doesn't mean that the cause has been treated.

Almost sounds like I'm trying to make an argument now when I read over it, but I'm not... I'm totally confident of it's ability to treat both the cause and symptoms of various ailments. I'm just trying to find out how effective in the long run the body's tolerance would be for it's ability to directly treat illness.