Regret is an emotional response that occurs when a person feels sorrow or disappointment about a past action or decision. It often involves wishing that one had made a different choice, leading to feelings of guilt or sadness. This emotion can arise from various situations, such as missed opportunities, hurtful words, or actions that caused harm to oneself or others. People experience regret differently, and it can serve as a learning tool for future decisions. While it can be uncomfortable, reflecting on regret can help individuals understand their values and priorities, ultimately guiding them toward better choices in the future.