Glycogen is a form of energy storage in the human body. It is a polysaccharide, a large molecule formed by units of glucose. Glycogen is stored in the liver and muscles, acting as an energy reserve that the body can use when needed.
During periods of intense physical activity or when blood sugar levels decrease, the body breaks down glycogen into glucose to obtain energy.
It is an efficient way to temporarily store energy and ensure a constant supply for the proper functioning of the body.