Dr. Loretta Breuning is the Founder of the Inner Mammal Institute and author of Habits of a Happy Brain: Retrain your brain to boost your serotonin, dopamine, oxytocin, and endorphin levels. As a Professor of Management at California State University, and as a parent, she lost faith in prevailing views of human motivation. Her search for answers led to studies of the brain chemistry we share with earlier mammals.