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Evolution of Brain Rewards for Physical Activity and Community Survival
Human evolution led to the brain rewarding physical activity as a survival mechanism. Initially, the brain rewarded activities essential for survival like eating, mating, and reproducing. As human communities developed, the brain needed to reward physical activity to prevent laziness and ensure the community's survival. The brain tests individuals before rewarding physical activity, where committing to the activity signals its importance and leads to a release of rewards, ensuring effort is put into essential tasks for survival.