They also supply electrolytes, mainly sodium, chloride, and potassium. These are key for the body's fluid balance and are crucial in preventing muscle cramps. The water helps the cardiovascular system from getting over strained in its attempt to keep the body cool. Sports drinks are not necessary for all athletes or all activities. So if you are involved in running, biking, or other endurance events lasting more than one hour, sports drinks may provide some performance benefits.
Sports drinks help replace the water lost through sweating, which is the body's cooling mechanism.
Water is an important part of an adequate blood supply, which is crucial in keeping the body cool, supplying enough oxygen to the working muscles, and removing heat and waste from these muscles quickly. Besides water, sports drinks also supply carbohydrates, which give energy to the working muscles. If you are periodically consuming sports drinks during activity, you may increase your endurance, postpone fatigue, and improve performance. Sports drinks also supply electrolytes, which is crucial as your body loses sodium and other electrolytes when you sweat. Not only are the electrolytes replaced, but these electrolytes have important functions in the body.