“Good morning, boys. Let’s talk about dopamine, shall we?” Dr. Parminder begins in his clipped, efficient voice. “Take a look at this first slide. Dopamine is a neurotransmitter, acting as a chemical messenger between neurons in the brain. It’s also part of your internal reward system, meaning when you’re doing something that makes you feel good, dopamine is released.” Shane drops his head in both hands. I do my best not to reach over and pat him on the shoulder. I anticipate getting a fist to the face if I attempt it. Dr. Parminder goes on. “And when you masturbate, you feel good.” Patrick
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