Why can hypoglycemia cause lethargy?

Lethargy is a state of tiredness and weakness, and can be caused by hypoglycemia, which is a condition where the blood sugar levels drop below normal. This occurs when the body does not have enough glucose, or sugar, to use as energy.

When blood sugar levels are low, the body tries to conserve energy by slowing down its functions. This can lead to lethargy, as well as other symptoms such as confusion, dizziness, sweating, and hunger.

In severe cases of hypoglycemia, the brain may not receive enough glucose to function properly, which can lead to seizures and coma.

Hypoglycemia can be caused by a variety of factors, including not eating enough, skipping meals, drinking too much alcohol, or taking too much insulin or other diabetes medications. It can also be a sign of an underlying medical condition, such as liver disease or kidney disease.

If you are experiencing lethargy and think you may have hypoglycemia, it is important to check your blood sugar levels and treat the condition as soon as possible. This can be done by eating or drinking something containing sugar, such as a piece of fruit, a glass of juice, or a candy bar. If your symptoms do not improve, you should seek medical attention immediately.