If you have diabetes, you probably know how annoying and sometimes painful it is to prick your finger with a small needle several times a day, take a drop of blood, and put it on a test strip to check your blood sugar level. It really gets tiring when you do this every day, maybe three or four times a day, doesn't it? Regularly checking your blood sugar levels in this way is very important to know if your treatment is working properly, whether you need to control your diet, or if you need to change your insulin dose.
But there's good news for you! Ten years ago, all you had to do was prick your finger, but technology has advanced a lot. Now there are ways to monitor your blood sugar levels without this painful procedure, or with very little effort. Today, we're going to talk about these new, high-tech methods. These are the future of diabetes management.
A way to check your sugar without pricking your finger? Yes, that's CGM! (Continuous Glucose Monitoring)
It's very simple. A very small sensor is implanted under your skin, usually on your stomach or arm. This sensor continuously measures the sugar level in the fluid between your body's cells, every few minutes. The data is then sent wirelessly to a small device like a phone, an app on your smartphone, or an insulin pump. Imagine, you don't have to do anything, you can keep track of your sugar levels on your phone.
This is called Continuous Glucose Monitoring , or CGM for short.
The biggest advantage of a CGM is that you can make decisions about your treatment without having to prick your finger again to check your blood sugar. For example, if you see that your sugar level is rising, you can immediately do some exercise or do something else as your doctor has advised.
You can share the data from your CGM with your doctor, who can then tailor your treatment plan to better control your blood sugar levels. But keep in mind that sometimes, while using your CGM, your doctor may ask you to take a blood sample from your finger to make sure (calibrate) the readings are accurate.
Although CGM is most often used by people with Type 1 Diabetes, research is now underway to see how beneficial it is for people with Type 2 Diabetes as well.
Artificial Pancreas - This is an amazing technology!
Simply put, the real pancreas in our body produces a hormone called insulin to lower blood sugar when we eat, and a hormone called glucagon to raise blood sugar when we eat. This technology called the "artificial pancreas" is trying to do the same thing. Although the technology is not 100% there yet, it is very close.
These current systems are called hybrid closed-loop systems . They are mainly used by people with type 1 diabetes.
This is how it works:
1. A CGM monitors your blood sugar levels both day and night.
2. The system automatically calculates how much insulin you need based on that sugar level.
3. The amount is automatically delivered to the body through an insulin pump.
But there is a slight challenge. You still have to count the amount of carbohydrates you eat at each meal and enter it into the system. Also, these systems are not yet able to deliver the hormone glucagon if your sugar level gets too low. Researchers are now trying to create a system that can deliver both of these hormones. Perhaps we will see that in the near future.
The day when you can taste sugar without even using a spoon is not far away!
Even with the CGM methods we've talked about so far, you have to use a small needle to insert the sensor under the skin. But imagine, how great it would be to be able to measure blood sugar levels without any piercings, cuts, or pain?
That's the goal of several of the latest technologies being developed now. These are called non-invasive monitoring . That is, observations are made without inserting anything into the body.
Let's look at some of these methods:
- Electric Current: The device, called `sugarBEAT`, is a patch-like device that, when applied to the skin, sends a very fine, almost imperceptible electric current through the skin, measuring the sugar level in the fluid beneath the skin.
- Microneedles: `K'Watch` is a wearable device that looks like a watch. It uses tiny, painless microneedles to measure blood sugar levels in the fluid just below the skin's surface.
- Light or radio waves: Other methods measure blood sugar levels by sending light or radio waves through the skin, such as your finger, belly, or wrist. But the biggest challenge with these is accuracy . This is because it is difficult to distinguish the signal from sugar molecules from signals from other substances in the water and blood.
Meanwhile, research is also being conducted to measure sugar using easily accessible body fluids such as sweat, tears, and saliva. Time will tell whether these methods will ever be able to provide accurate results that can be of benefit to diabetics.
| Technology | How it works | Main advantage |
|---|---|---|
| CGM (Continuous Glucose Monitoring) | Continuously measuring sugar levels with a sensor implanted under the skin. | Being aware of your blood sugar levels 24 hours a day without having to prick your finger frequently. |
| Artificial Pancreas | Measuring sugar with a CGM and automatically delivering the required amount of insulin. | It is easier to control without having to worry about insulin dosage. |
| Non-invasive Monitoring (Future Technology) | Measuring sugar without any harm to the skin (e.g., by light, electric current). | Completely painless and easy to use. |
Take-Home Message
- Blood sugar levels have improved so much that we can no longer have to prick our fingers several times a day.
- CGM (Continuous Glucose Monitoring) is a very good and convenient method available today. It allows you to get information about your sugar levels 24 hours a day.
- Technologies like the artificial pancreas automate insulin delivery, making diabetes management even easier.
- There are also good signs that non-invasive methods will be available in the future that are painless and do not damage the skin.
- The most important thing is, no matter which technique you use, be sure to talk to your doctor about which method is best for you and how to use it. It is very important to follow his or her instructions.
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