What is a common symptom of hypoglycemia?

Fatigue is indeed a common symptom of hypoglycemia. When the blood sugar levels drop significantly, the body doesn't have enough glucose available to function optimally, which can result in a feeling of tiredness and lethargy. Glucose is a primary source of energy for the body's cells, especially for the brain. When glucose levels fall, individuals often experience a decrease in energy, leading to fatigue.

In contrast, although blurred vision and excessive sweating can also occur during hypoglycemic episodes, these symptoms are part of a more complex response of the body to low blood sugar levels. Blurred vision often arises from the body’s temporary inability to manage its functions properly due to low glucose levels. Increased energy is incorrect, as hypoglycemia typically leads to a decrease in energy levels, not an increase. Understanding the body's response to low blood sugar helps in recognizing and managing hypoglycemia more effectively.