Motivation is not merely a psychological construct — it is deeply rooted in the neurochemical balance between serotonin and dopamine. While dopamine fuels short-term, reward-driven behaviors, serotonin plays a crucial role in stabilizing long-term motivation, emotional resilience, and goal-directed behavior. However, when serotonin function is compromised — whether due to genetic predisposition, environmental stress, or neuroadaptive changes — individuals often struggle to sustain effort toward meaningful pursuits, leading to an increased reliance on transient dopamine-driven reinforcements such as social media engagement, novelty-seeking, and instant gratification behaviors.