Positive reinforcement contributes to habit formation by encouraging individuals to continue desired behaviors through rewards. When a behavior, such as regular exercise or healthy eating, is followed by a positive outcome, it strengthens the likelihood of repeating that behavior in the future. This approach can involve celebrating achievements, like reaching fitness milestones, or simply recognizing progress. By creating a supportive and rewarding environment, positive reinforcement can foster motivation and commitment, making it easier for individuals to establish and maintain healthy habits over time.