C. Alexander Simpkins, Ph.D., and Annellen M. Simpkins, Ph.D., are psychologists in private practice who have been working with yoga, mindfulness and meditation methods for more than 40 years. They are the authors of 28 books on Eastern meditation methods, hypnosis, and how to apply them therapeutically including The Tao of Bipolar: Using Meditation and Mindfulness to Bring Balance and Peace and Neuroscience for Clinicians.