Gabor Maté
In the Realm of Hungry Ghosts

Gabor Maté is a Canadian physician and bestselling author who specializes in the study and treatment of addiction. He radiates kindness and a deep understanding of the human condition. His holistic approach shows a knowing of the sensibility that constitutes our mind-body continuum. And only this is what makes real healing possible. On these grounds he also became interested in the traditional Amazonian plant medicine ayahuasca and its potential for treating addictions.

The following quote by him refers to PTSD but I feel it applies to most of the conditions we call diseases:

Western medicine, the traditional allopathic medicine in which I was trained, is really wholly inadequate in dealing with it. It does not even understand it. It sees it as a desease. It’s not a desease. What it actually is:

It’s a normal response to an abnormal situation.
Gabor Maté

On Maté’s website you find lots of useful information.
I selected a few videos for you to watch:

Gabor Maté Answers Questions About Ayahuasca

Gabor Maté on Ayahuasca and Addiction Treatment