How Everything Works on Instagram: "Are we cooked?😭 Dopamine is a neurotransmitter involved in motivation, reward learning, and habit formation, rather than a simple “pleasure chemical.” Activities that involve uncertainty and variable rewards, such as gambling, can produce strong dopamine responses because the brain is especially sensitive to unpredictable outcomes. Research shows that intermittent reinforcement, where rewards are inconsistent and not guaranteed, can drive repeated engagement

A simple way to break a bad habit