Lactate shuttle theory

The lactate shuttle theory suggests that lactate, often viewed as a waste product of exercise, can actually be a valuable energy source. When muscles work hard, they produce lactate, which is then transported to other tissues, such as the heart and even other muscles. These tissues can use lactate for energy, aiding in recovery and performance. This process helps maintain energy levels during intense exercise and reduces fatigue. Essentially, rather than being discarded, lactate plays a crucial role in energy management in our bodies during physical activity.