Why does low blood sugar make you dizzy?

When your blood sugar is low, your brain tries to preserve as much energy as possible, so you may feel lightheaded as a result, according to Harvard Health Publishing.

Can low blood sugar cause dizziness and fatigue?

Low blood sugar Your body needs sugar, also known as glucose, for energy. When your blood sugar level drops, you can become dizzy, shaky, and tired. Low blood sugar is often a side effect of insulin and other drugs used to treat diabetes.

What does a blood sugar level of 25 mean?

Low blood sugar is called hypoglycemia. A blood sugar level below 70 mg/dL (3.9 mmol/L) is low and can harm you. A blood sugar level below 54 mg/dL (3.0 mmol/L) is a cause for immediate action. You are at risk for low blood sugar if you have diabetes and are taking any of the following diabetes medicines: Insulin.

What happens when blood sugar is too low?

Most people will feel the effects and symptoms of low blood sugar when blood glucose levels are lower than 50 mg/dL. Symptoms and signs include nervousness, dizziness, trembling, sweating, hunger, weakness, and palpitations. Severe cases may lead to seizures and loss of consciousness.

Can a sugar rush cause dizziness?

Dehydration. High blood sugar levels (hyperglycemia) can cause polyuria, which in turn can lead to dehydration by passing too much fluid out of the body in an attempt to remove excess glucose. With low levels of water in the body, the brain may struggle to function correctly and cause light headedness.

Is 14 a high blood sugar reading?

If your blood sugar levels are consistently high (usually above 20 mmol/L in adults and above 14 mmol/L in children), you may have moderate to severe symptoms of high blood sugar.

Can low or high blood sugar make you Dizzy?

If low blood glucose occurs during the night, your chance of developing headache /dizzy is pretty high. You may experience an uncomfortable nightmare, excessively sweat during night that can make your sheets /pajamas become damp, and then you may wake up from your sleep with a headache.

Can you faint if you have low blood sugar?

Low sugar levels (hypoglycaemia) can cause symptoms of feeling faint and possible collapse. You do not need to be a diabetic to experience hypoglycaemia. In hypoglycaemia, the sugar levels in the blood drop too low.

What are the symptoms and causes of low blood glucose?

Clumsiness or jerky movements