Other Recommended Reading
If you want scientific information on how your brain and body function, read these amazing books:

The Mind & The Brain, Neuroplasticity and the Power of Mental Force, by Jeffrey M. Schwartz, M.D., and Sharon Begley
Train Your Mind, Change Your Brain: How a New Science Reveals Our Extraordinary Potential to Transform Ourselves, by Sharon Begley 

Learned Optimism, How to Change Your Mind and Your Life, by Martin E.P. Seligman, PhD 

Mind Wide Open, by Stephen Johnson 

Positive Energy, by Judith Orloff, MD

Many Lives, Many Masters, Same Soul, Many Bodies, Through Time In Healing,
Brian Weiss, M.D.

The Biology of Belief, and The Wisdom of Your Cells, by Bruce Lipton, PhD

You! The Owner’s Manual, by Michael F. Roizen, MD, Mehmet C. OZ, MD