Ever wonder why you might wake up needing a full pot of coffee to form a sentence, while others pop out of bed ready to conquer the world? Or why some people cry during a commercial, while others can seem untouched watching the most traumatic events unfurl? What makes someone lose their mind in anger, while another can calmly walk away from a challenge? The answer is in our brain chemistry. Our moods, motivation, and quirks are all influenced by the unique mixture of chemicals zipping around in our brains.