When people say they have "butterflies" in their stomach, they are describing a feeling of nervousness or anxiety. This sensation often occurs before important events, like giving a speech or going on a first date. The term comes from the fluttery feeling in the stomach, similar to how butterflies move around. It's a natural response to stress, as our body prepares to face a challenge. These butterflies are caused by the release of adrenaline, which can make our heart race and our palms sweat. While it might feel uncomfortable, this nervous energy can also help us stay alert and focused. Embracing these feelings can turn anxiety into excitement, making us perform better in situations like job interviews or sports competitions.