Negative self-talk can significantly impact exercise motivation by fostering a pessimistic mindset that undermines effort and commitment. When individuals engage in self-critical thoughts, they may feel less capable or enthusiastic about their fitness activities. This can lead to increased feelings of frustration, anxiety, and resignation, deterring them from pursuing their fitness goals. Conversely, reframing negative thoughts into positive affirmations can enhance motivation and resilience, encouraging individuals to push beyond mental barriers and stay committed to their exercise routines.