Insulin is the hormone responsible for regulating blood sugar levels in the body. Produced by the pancreas, insulin plays a crucial role in managing glucose levels by promoting the uptake of glucose into cells for energy. When we eat, our blood sugar levels rise, triggering the pancreas to release insulin. This helps keep blood sugar levels within a normal range, preventing hyperglycemia (high blood sugar) or hypoglycemia (low blood sugar). Disorders such as diabetes can occur when insulin production is insufficient or when the body's cells become resistant to its action, leading to complications in blood sugar regulation.