why we get energized when we intake sugar?

When we consume sugar, it leads to a quick increase in blood glucose levels, which serves as the preferred fuel source for the brain. This rapid availability of glucose can enhance our willpower and tenacity, allowing us to maintain or even increase our levels of performance across different tasks requiring mental effort. This is because the brain relies heavily on glucose to function optimally, especially in situations demanding sustained cognitive activity 1.

Additionally, the glucose from sugar immediately becomes available in the bloodstream, where it can be used directly by our cells for energy. This process supports both physical and mental activities by providing the necessary fuel for effort and endurance. The body and brain's ability to utilize this glucose efficiently keeps us energetically engaged in our tasks 2.

Glucose and glycogen are related but distinct substances involved in the body's energy metabolism.

• Glucose: This is a simple sugar and a primary source of energy for the body. It is a six-carbon molecule that circulates in the blood and is used by cells for immediate energy needs. When muscles require energy, glucose can be broken down through a process called glycolysis to produce ATP (energy), especially during activities that require quick energy 1.

• Glycogen: Glycogen is essentially a storage form of glucose. It is more complex, being composed of multiple glucose units linked together to form a large carbohydrate polymer. Glycogen is primarily stored in the liver and muscles. During periods when the body needs glucose but none is available from recent dietary intake, glycogen can be broken down into glucose molecules. This stored glycogen provides an important energy reserve during fasting or intense physical activity 2.

The link between glucose and glycogen is crucial for energy management in the body. Glycogen functions as the storage form of glucose, allowing the body to maintain a balance between immediate and stored energy sources depending on demand and availability.