I heard of this book on public radio. Having suffered from autoimmune diseases, I have a strong interest in the immune system, so I wanted to read this book. I wanted to learn more, and I did. The author packed a ton of information into the pages along with the stories of four people. Huge strides made in the last few years in understanding our immune system, but there is still more to be learned. One thing I learned is how much of a balancing act is going on inside us.

A lot of science, but very readable.