Repulsion, or disgust, is an emotional response that arises when individuals encounter something perceived as offensive, unpleasant, or harmful. This reaction can be triggered by various stimuli, including certain foods, smells, or even behaviors. The feeling of disgust serves an important evolutionary purpose, helping to protect individuals from potential dangers, such as spoiled food or disease. Disgust is often linked to physical sensations, such as nausea or a strong desire to avoid the source of the feeling. It can also be influenced by cultural factors, as different societies may have varying standards for what is considered repulsive. Common examples of disgust include rotten food, poor hygiene, and certain insects.