A crush, or infatuation, is a strong but often short-lived romantic attraction to someone. It typically involves intense feelings of admiration and desire, often accompanied by daydreaming and excitement. People may experience physical symptoms, such as increased heart rate or nervousness, when around the person they have a crush on. Crushes can occur at any age and are common during adolescence, when individuals are exploring their feelings and relationships. While a crush can lead to deeper connections, it may also remain a fleeting experience, often characterized by idealization of the person involved, rather than a realistic understanding of them.