Loretta Graziano Breuning, PhD is the author of Habits of a Happy Brain: Retrain Your Brain to Boost Your Serotonin, Dopamine, Oxytocin and Endorphin Levels. She founded the Inner Mammal Institute to help people build new neural pathways to turn on their happy chemicals in new ways. 

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Relevant links:
https://www.ergogenic.health/ 

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