The Cori Cycle is a metabolic pathway that helps the body recycle lactate produced during intense exercise. When muscles work hard, they produce lactate, which can accumulate and lead to fatigue. The liver then converts this lactate back into glucose through a process called gluconeogenesis, allowing the body to use it as energy. This cycle is named after scientists Gerty Cori and Carl Cori, who discovered it in the 1920s. The Cori Cycle plays a crucial role in maintaining energy levels during prolonged physical activity, ensuring that muscles have a continuous supply of glucose for fuel.