Diabetes is a chronic health condition that impacts the lives of millions of people worldwide. Although many have heard of it, not everyone really knows what it is or that there are different types of diabetes with key differences in their origin, development, and treatment. Today we will study the difference between type 1 and type 2 diabetes, and we will explain everything you need to know clearly and simply.
What is diabetes and what are its most common types?
Diabetes is a metabolic disease that occurs when the body cannot properly regulate blood glucose (sugar) levels. This happens due to problems with insulin, a hormone produced by the pancreas that allows glucose to enter the cells to be used as energy.
Let's look at it in a more practical way, imagine that glucose (sugar) is the fuel you need to function, and insulin is the key that opens the door of the cells for them to use it. If that key doesn't work well or isn't available, the sugar stays in the blood instead of entering the cells, causing problems
In reality, there are several types of diabetes, however, the most common are:
- Type 1 diabetes: An autoimmune disease in which the body mistakenly attacks the pancreas cells that produce insulin. As a result, the body cannot produce this hormone, and people with this type of diabetes need to administer insulin for life.
- Type 2 diabetes: It is the most common form and occurs when the body does not use insulin efficiently. Unlike type 1, the pancreas continues to produce insulin but not in sufficient amounts or it is not used properly by the body.
How does diabetes affect the body?
Diabetes is characterized by elevated blood glucose levels due to problems in insulin production or action, a key hormone that allows cells to use energy from food. Without enough insulin or if the body does not use it properly, glucose accumulates in the blood, which can cause damage to various organs.
Normal blood glucose levels vary by age, but generally, for a fasting adult, they should be between 70 and 100 mg/dL. Consistently exceeding these levels is a warning sign.
What causes diabetes?
Diabetes does not appear out of nowhere. There are several factors that can lead to the development of this disease, depending on the type of diabetes present. While in some cases it is due to an immune system problem, in others it is related to lifestyle and genetics. Let’s look below at the causes of each of the main types of diabetes.
Causes of type 1 diabetes
Type 1 diabetes is an autoimmune disease, which means the immune system attacks the pancreas cells responsible for producing insulin. The exact causes are unknown, but genetic and environmental factors, such as viral infections, are believed to trigger it.
This type of diabetes is usually detected during childhood or adolescence; however, it can also manifest in adulthood.
Causes of type 2 diabetes
Type 2 diabetes, on the other hand, is related to insulin resistance. The body continues to produce insulin but cannot use it effectively. Over time, the pancreas cannot keep up, and blood glucose levels rise.
This type of diabetes is strongly linked to factors such as overweight, sedentary lifestyle, and unhealthy eating. Additionally, there is also a genetic predisposition.
As we see, part of the difference between type 1 and type 2 diabetes lies in their causes.
What are the risk factors for type 1 and type 2 diabetes?
Risk factors present another difference between type 1 and type 2 diabetes, as they vary depending on the type of diabetes, for example:
- Type 1 diabetes: Family history, genetic predisposition, age, environmental and autoimmune factors, and exposure to certain viruses.
- Type 2 diabetes: Overweight or obesity, sedentary lifestyle, poor diet, advanced age, metabolic syndrome, and family history.
How are type 1 and type 2 diabetes diagnosed?
Diabetes diagnosis is made through blood tests that measure normal blood glucose values in adults and children. The most common are:
- Fasting glucose: A value above 126 mg/dL on two occasions indicates diabetes.
- Glucose tolerance test: Measures glucose after drinking a sugary solution.
- Glycated hemoglobin (HbA1c): Reflects the average blood glucose over the past three months. A value equal to or greater than 6.5% indicates diabetes.
How are type 1 and type 2 diabetes treated?
Another major difference between type 1 and type 2 diabetes lies in their treatment. This varies depending on the type of diabetes present:
- Type 1 diabetes: Requires daily insulin administration through injections or the use of an insulin pump. There is no cure, but proper control allows for a normal life.
- Type 2 diabetes: It can be managed with lifestyle changes, a balanced diet, and exercise. In some cases, medications or insulin are prescribed if control is not sufficient.
What is the difference between type 1 and type 2 diabetes?
| Characteristics | Type 1 diabetes | Type 2 diabetes |
| Origin | Autoimmune | Insulin resistance |
| Age of onset | Childhood or adolescence | Adulthood (but can appear in young people) |
| Insulin production | No production | Insufficient or ineffective production |
| Risk factors | Genetic, environmental | Lifestyle, obesity, age |
| Treatment | Insulin for life | Diet, exercise, medications, sometimes insulin |
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