History of the Christian Church during the First Ten Centuries Book

I listened to this short audiobook, which contrary to the "unabridged" description, is much much shorter than the book by the same title and author. It starts up with an in-depth look at how perception alters the response of cells. It discusses epigenetics, and how proteins really contain the "secret of life", and not DNA itself. So far, so good.

The author then tries to make a parallel between cellular perception and an organism's sense of perception. He describes ways in which perception and beliefs can alter one's biological functions. For example, stress can impair the immune system. And, the placebo effect has a strong impact on the defense against many diseases. This is true enough, but the book does not explain, at least to my satisfaction, how beliefs can have these effects. We learn the "what" but not the "how". Then, when the book brings in teachings of Jesus, I lost all hope for this book.