"High energy" refers to a state of being characterized by increased activity, enthusiasm, and vitality. It often manifests in physical movements, mental alertness, and a positive attitude. People with high energy levels may engage in various activities, such as exercise, social interactions, or creative pursuits, often inspiring those around them. In scientific terms, high energy can also describe systems or particles with significant kinetic or potential energy. For example, in physics, high-energy particles are those that possess enough energy to cause reactions or changes in matter, playing a crucial role in fields like nuclear physics and particle physics.