"Gs" typically refers to "gravitational forces" or "g-forces," which are the forces of acceleration that we experience as weight. When an object accelerates, it exerts a force on the body, making it feel heavier or lighter. For example, during a roller coaster ride, the rapid changes in speed and direction can create varying levels of g-forces, making riders feel a rush. In aviation, pilots experience g-forces during maneuvers, which can affect their bodies and performance. High g-forces can lead to physical effects like increased blood pressure and even loss of consciousness, known as G-induced Loss Of Consciousness (GLOC). Understanding g-forces is crucial for safety in both aviation and space travel.