Are you someone who takes insulin for Diabetes Mellitus? If so, have you noticed that your blood sugar level has suddenly increased when you wake up in the morning? Even if you take your medication at night and are careful, it's surprising that you still have it in the morning? One reason for that could be the 'Somogyi effect'. Let's talk about this in a little more detail .
What is the Somogyi effect?
Simply put, the Somogyi effect is when a diabetic taking insulin experiences a sudden drop in blood sugar levels (hypoglycemia) during the night, followed by a sudden rise in blood sugar levels (hyperglycemia) in the morning. This happens because of the action of certain hormones in our bodies. Imagine, in the middle of the night, your blood sugar suddenly drops, and your body thinks, "Oh, this guy is going to get into trouble," and releases hormones to save him. That's why your blood sugar levels rise in the morning.
It is named after Dr. Michael Somogyi, a doctor who first discovered it in the 1930s. Doctors sometimes call it 'rebound hyperglycemia'.
But here's something you should know. The Somogyi effect is still a 'theory' among researchers, meaning it's just an opinion. That means it's not 100% proven, but there is scientific evidence to support it. In the past, doctors thought that this was the main reason for the morning sugar spike. But new research, especially research using continuous glucose monitoring (CGM), has raised questions about this idea.
There are several other reasons why blood sugar levels may increase in the morning, not just the Somogyi effect:
- The amount of medicine you take is not enough, because it leaves your body at night.
- A situation called the Dawn phenomenon. (We'll talk about this too)
- The amount of medicine taken at dinner didn't match the amount of food.
- Having insulin resistance.
What is the difference between the Somogyi effect and the Dawn phenomenon?
Okay, now you might be wondering, 'What is this dawn phenomenon?' Both of these are things that cause blood sugar levels to rise in the morning in people with diabetes.
The dawn phenomenon is a natural increase in blood sugar levels caused by the release of several hormones (such as cortisol and growth hormone) in the early morning. This is normal.
But in the Somogyi effect, hormones are also at work, but it happens because of a sudden drop in sugar (hypoglycemia) during the night. In the dawn phenomenon, sugar does not increase due to such a drop in sugar.
Another important thing is that the dawn phenomenon, among the causes of increased blood sugar in the morning , is much more common than the Somogyi effect.
What are the symptoms of the Somogyi effect?
The main sign of the Somogyi effect is that your blood sugar levels are elevated when you wake up in the morning. Whether you look at your glucometer or if you use a CGM (Continuous Glucose Monitoring) device, it will show that your sugar levels are high in the morning.
Depending on how high your blood sugar is, you may experience symptoms like these when you wake up in the morning:
- Frequent thirst (polydipsia).
- Feeling hungrier than usual.
- Frequent urination .
- Headache.
- Feeling upset and angry (irritability).
Why does the Somogyi effect occur?
According to the theory of the Somogyi effect, if your blood sugar level drops too low (hypoglycemia) in the middle of the night while you're sleeping due to the insulin you're taking, your body will try to 'save' you from that low sugar state.
The body releases several hormones for this 'rescue mission'. The main ones are:
- Adrenaline
- Corticosteroids
- Growth hormone
- Glucagon
These hormones cause your liver to release more glucose, or sugar, than normal into your blood. This release of glucose causes your blood sugar levels to rise. If you have diabetes, your pancreas does not produce enough insulin to control this increased sugar level, or it does not produce any at all. This is why your blood sugar levels remain high.
In a person without diabetes, the body naturally controls blood sugar levels and keeps them within a certain range. That is why the Somogyi effect does not affect people without diabetes.
How do you find a doctor like this?
Actually, the Somogyi effect is not a very common cause of morning blood sugar spikes, so it can be a little difficult to diagnose. And, as I mentioned before, the latest research suggests that it may not be the cause of morning blood sugar spikes. So it can be difficult, if not impossible, for a doctor to accurately diagnose it by saying, 'Okay, this is it.'
If you often have high blood sugar in the morning, it's best to talk to your doctor who helps you manage your diabetes. He or she will look at how your blood sugar levels fluctuate and try to find the cause. The most effective way to do this is to use a CGM (Continuous Glucose Monitoring) device.
If you're not using a CGM, your doctor will probably tell you to check your blood sugar levels several times a day. For example:
- Two hours after dinner.
- Before bed.
- In the middle of the night (for example, around 2 or 3 am).
- Upon waking up in the morning.
Also, they tell you to record details like what foods you eat at night, how much you eat, and if you exercise at night, what kind of exercise you do and for how long.
Only by collecting all this information can the doctor determine the cause of the high blood sugar in the morning.
How is the Somogyi effect treated?
After you and your doctor have worked together to figure out how your blood sugar levels behave during the night, they will advise you on changes you can make to help prevent morning blood sugar spikes. Remember, everyone's body is different, and there are many factors that affect blood sugar levels. So, what you can do to prevent morning blood sugar spikes may vary from person to person.
Your doctor may suggest things like:
- Changing the dose of your diabetes medication or insulin.
- Changing the types of foods you eat for dinner. For example, you may need to eat foods that are higher in protein, carbohydrates, or fat, or you may need to eat fewer of them.
- If possible, switching to an insulin pump will allow you to control your insulin doses more accurately.
- Changing the time of nighttime exercise.
What complications can this cause?
Whether or not the Somogyi effect is actually the cause of morning blood sugar spikes, it does highlight two important points. People with diabetes should try to avoid these two complications:
- Continuously high blood sugar levels.
- Low blood sugar levels (hypoglycemia) occur at night.
Continued increase in blood sugar levels
As your blood sugar levels continue to be high, your HbA1c (A1C) levels will increase, and your Time in Range (TIR) will decrease. The HbA1c test measures your average blood sugar levels over the past three months. TIR is the average percentage of days your blood sugar levels are within the target range.
The worse your A1c and TIR levels get, especially if they've been there for years, the higher your risk of developing complications from diabetes. Examples of these complications include:
- Eye disorders (Retinopathy)
- Kidney problems (Nephropathy)
- Neuropathy
- Heart disease
Research has shown that people with diabetes can reduce their risk of these complications if they keep their A1c levels below 7%.
High blood sugar in the morning can be a persistent problem, and if left untreated, your blood sugar levels can remain high for several hours a day. This increases your risk of developing diabetes complications over time.
Overnight low blood sugar episodes
For many people with diabetes, low blood sugar, or hypoglycemia, is when blood sugar drops below 70 mg/dL (milligrams per deciliter).
When blood sugar levels drop, many people experience symptoms like these:
- Feeling like your body is shaking.
- Feeling very hungry (polyphagia).
- Sweating and feeling cold.
- Dizziness, a feeling of lightheadedness.
- Heart rate increases.
However, if your blood sugar drops while you're sleeping, it may take a while for you to wake up and notice the symptoms. This can be dangerous, and severe hypoglycemia can be life-threatening. Symptoms of low blood sugar at night may be slightly different, including:
- Insomnia, feeling uncomfortable with sleep.
- Feeling tired and unfocused when you wake up in the morning.
- Having bad dreams.
- The clothes or bedding you are wearing become wet from sweat.
No matter what symptoms you have that make you think you have low blood sugar, it's important to check your blood sugar level to see how low it is. This will help you decide how to treat it. To treat hypoglycemia, you should eat fast-acting carbohydrates, which are sugars (like a banana or apple juice).
If you often have low blood sugar at night, be sure to talk to your doctor about it. Together, you can adjust your diabetes management plan to prevent it from happening again.
When should I see a doctor?
If you are consistently experiencing high blood sugar levels in the morning, it is important to talk to your doctor who is helping you manage your diabetes. He or she can test your blood sugar levels, determine if the Somogyi effect is the cause, or if there is something else going on, and recommend a treatment plan that is right for you.
Having high blood sugar in the morning can be really annoying and uncomfortable. There is no one-size-fits-all solution to this. So it may take some time to find the right solution for you. Your doctor can help you decide on the best course of action. Don't be afraid to ask for their help. Taking action now can help you avoid both short-term and long-term complications.
Finally, the most important thing (Take-Home Message)
Okay, so now you have a better understanding of the Somogyi effect that we talked about. Remember, this is not the only reason for the increase in sugar in the morning. But, it is important to be aware of it.
- The main thing is, if you're constantly having high blood sugar in the morning, don't ignore it. Be sure to talk to your doctor.
- If you are using a CGM (Continuous Glucose Monitoring), seek the help of your doctor to properly analyze the data.
- Low blood sugar (hypoglycemia) at night is very dangerous. If you have any of these symptoms, tell your doctor about them as well.
- Discuss your diet, exercise, and medication dosage with your doctor and adjust them to what works best for you.
Living with diabetes is a challenge, but with proper management, you can live a healthy life. Don't be afraid, okay?
👩🏽⚕️ Additional questions (FAQs)
💬 What is the Somogyi Effect?
This is a surprising thing for diabetics. When we take insulin at night and go to bed, our blood sugar levels drop dangerously in the middle of the night (2-3 am). To control it, our body (liver) suddenly releases a lot of sugar into the blood. As a result, when we wake up in the morning, our fasting blood sugar levels rise abnormally.
💬 What happens if you increase your insulin dose at night because you have high blood sugar in the morning?
That's where the biggest mistake is made! If the high blood sugar in the morning is due to this 'Somogyi' problem where blood sugar levels dropped at night, if you increase the insulin even more, the blood sugar levels will drop even more in the morning and the patient could go into a coma or die.
💬 So what is the solution to this?
To find this out, the patient should be woken up at 3 am for a few days and their blood sugar checked. If the blood sugar is still low at that time, it is definitely the Somogyi Effect. Then the solution is to 'reduce' the dose of insulin given at night or eat a small snack before going to bed.
` Somogyi effect, diabetes, morning sugar spike, hypoglycemia, hyperglycemia, insulin
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