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Signs Of Low Blood Glucose Levels At Night: 10 Reasons Why Your Blood Sugar Crashes Late At Night

Nocturnal hypoglycemia is a fairly common problem faced by people but even if you are not diabetic, you may experience a sudden crash in blood glucose levels at night. Know why it happens.

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Written By: Kinkini Gupta | Updated : November 6, 2024 1:04 PM IST

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What Causes Blood Glucose Levels To Dip At Night?

Why do some people experience a blood glucose crash in the middle of the night? This is a fairly common problem for many people but they may not be aware of it. When blood glucose levels fall below 70 mg/dl during sleep, it is called nocturnal hypoglycemia according to John's Hopkins Medicine. When this happens, the person's blood sugar is said to experience a sudden crash. This crash can cause the cortisol levels or stress hormone to spike up which in turn can lead to disrupted sleep, night mares and symptoms of insomnia. This typically happens in the middle of someone's sleep at night which is why it is called nocturnal hypoglycemia. If a person is not aware of this condition, it may be dangerous but otherwise this condition is preventable with careful planning. In this article we will discuss in detail the factors which cause blood glucose levels to fall at night.

What Causes Blood Sugar To Crash Late In The Night?

Blood sugar levels can drop at night for a number of reasons, including:

If a person has been diagnosed with nocturnal hypoglycemia and still experiences blood sugar crashed at night, these factors are responsible for it. But, blood sugar can also reduce for people who do not have hypoglycemia. Let us look at both the factors:

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  1. The person may be taking too much insulin or taking it at the wrong time.
  2. The person may be eating very less food. Moreover, skipping dinners can also cause blood sugar crash.
  3. The person may be eating very little food after taking insulin.
  4. The person may not be getting enough nourishment with the correct diet throughout the day.
  5. The person may be eating very less carbohydrates than what he or she should.
  6. Drinking alcohol before going to bed can also lead to blood glucose fall.
  7. If you have a habit of increasing physical activities right before bed time, you may experience this even if you are not diabetic.
  8. Weather is also a factor sometimes for example; hot, humid weather can cause it.
  9. Menstruation, feeling ill, puberty and rare medicines can be few other factors.
  10. Lastly, skipping important meals can also be another factor of blood sugar crash at night.

Who Are At Risk Of Nocturnal Hypoglycemia?

Nocturnal hypoglycemia can mostly happen to people who:

  1. Frequently skip important meals especially dinner.
  2. Do not take enough carbohydrates.
  3. Do physical exercise before going to bed.
  4. Drink alcohol before bedtime.
  5. Are suffering from infections.
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Kinkini Gupta

Kinkini Gupta

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