I've been reading about cognitive dissonance and how people rationalize unhealthy habits, and I'm starting to think that willpower alone rarely sustains long-term change. For instance, my friend quit smoking for two months by sheer determination, but the moment stress spiked at work, he relapsed within a week. Behavioral psychology suggests that our environment and habits, not conscious effort, drive most actions—so maybe we should stop blaming individuals for lacking willpower and instead redesign our surroundings to make the right choice easier. That said, I've also seen people transform their lives through sheer grit, which makes me wonder if I'm underestimating the power of the mind.