Potential drawbacks of fitness challenges include the risk of injury, unrealistic expectations, and burnout. Many challenges encourage rapid results, leading participants to push beyond their limits. This intense focus can result in overtraining or improper technique, increasing the likelihood of injuries. Moreover, if participants do not achieve the desired results, it can lead to discouragement and decreased motivation. Lastly, some may experience emotional stress from competition, leading to burnout instead of a positive fitness experience.