Gabor Mate is a well known speaker and author from Vancouver. He ran a private family practice out of the Downtown Eastside and worked at Vancouver General Hospital for many years. There is a wealth of material he has produced over the years. If you are interested in topics like addiction, trauma, mind/body health, childhood development/parenting and ADHD, I am sure you will find what he has to say interesting.
This is a short clip of him speaking about the myth of "normal":