I was told by a physician that the only way marijuana can hurt the human body is if a brick of it feel out of a plane and landed on someone s head. Is that true for people w/ dialated cardiomyopathy? I have dilated cardiomyopathy and I was told marijuana could be good for me if eaten/vaporize instead of smoked? Is this true?

Summarized question: Is marijuana good for dilated cardiomyopathy patient?