Diabetes and Hypoglycemia Unawareness
- Published December 8, 2025, at 15:08 PST.Updated as new information becomes available.
- Hypoglycemia, commonly known as low blood sugar, happens when the level of glucose in your blood drops too low.
- Glucose is the main source of energy for your body.When your blood sugar is too low, your body doesn't have enough fuel to function properly.
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Understanding and Managing Hypoglycemia (Low Blood Sugar)
Table of Contents
Published December 8, 2025, at 15:08 PST.Updated as new information becomes available.
What is Hypoglycemia?
Hypoglycemia, commonly known as low blood sugar, happens when the level of glucose in your blood drops too low. For most people with diabetes, this means a blood sugar level below 70 milligrams per deciliter (mg/dL)[[[[National institute of Diabetes and Digestive and Kidney Diseases (NIDDK) – Hypoglycemia]. However,symptoms can vary,and some individuals may experience them at slightly higher levels.
Glucose is the main source of energy for your body.When your blood sugar is too low, your body doesn’t have enough fuel to function properly. This can lead to a range of symptoms, from mild discomfort to serious health complications.
Symptoms of Low blood Sugar
The symptoms of hypoglycemia can vary from person to person and can depend on how quickly your blood sugar drops. Common symptoms include:
- Shakiness or trembling
- Sweating
- Dizziness or lightheadedness
- Hunger
- Irritability or mood changes
- Confusion or difficulty concentrating
- Blurred vision
- Headache
- Rapid heartbeat
- In severe cases: loss of consciousness, seizures
It’s important to note that not everyone experiences all of these symptoms, and some people may not even realize they have low blood sugar until it becomes severe. This is why regular blood sugar monitoring is crucial, especially for individuals with diabetes[[[[Centers for Disease Control and Prevention (CDC) - Hypoglycemia].
Causes of Hypoglycemia
Hypoglycemia is most commonly associated with diabetes treatment, but it can occur in people without diabetes in rare cases. Here’s a breakdown of common causes:
In People with Diabetes
- Too much insulin or diabetes medication: Taking a higher dose of medication than needed can lower blood sugar excessively.
- Skipping meals or eating too little: Not consuming enough carbohydrates can lead to a drop in blood sugar.
- Increased physical activity: Exercise uses glucose for energy, and if you don’t adjust your medication or food intake accordingly, it can cause hypoglycemia.
- Drinking alcohol: Alcohol can interfere with the liver’s ability to release glucose into the bloodstream.
In People Without diabetes (less Common)
- Certain medications: Some medications, such