Diabetes Mellitus is a long-term condition that affects how the body turns food into energy. When we eat, our body breaks down food into sugar (glucose), which enters the bloodstream. In response, the pancreas releases a hormone called insulin, which helps move glucose from the blood into the cells, where it is used for energy.
However, in people with diabetes mellitus, this process does not work properly. Either the body does not make enough insulin, or it does not use insulin effectively. As a result, too much sugar stays in the bloodstream, leading to high blood sugar (hyperglycemia). Over time, this can cause serious health problems, such as heart disease, kidney damage, nerve issues, and vision problems.
The term “diabetes mellitus” comes from Greek and Latin origins. “Diabetes” means “to pass through,” referring to frequent urination, one of the main symptoms. “Mellitus” means “honey-sweet,” referring to the high sugar content in the urine of people with the condition.
There are three main types of diabetes mellitus. Type 1 diabetes mellitus occurs when the immune system mistakenly attacks and destroys insulin-producing cells in the pancreas. Without insulin, sugar cannot enter the cells, leading to dangerously high blood sugar levels. People with type 1 diabetes must take insulin every day to survive. This type is usually diagnosed in children or young adults and may be linked to genetic and environmental factors, such as viral infections (American Diabetes Association).
Type 2 diabetes mellitus is the most common type. It happens when the body becomes resistant to insulin or does not produce enough insulin. As a result, sugar stays in the bloodstream instead of being used for energy. This type is often linked to lifestyle factors such as diet, lack of exercise, and being overweight. It typically develops in adults but is increasingly seen in younger people due to rising obesity rates (Centers for Disease Control and Prevention (CDC)).
Gestational diabetes mellitus (GDM) occurs during pregnancy when hormonal changes make it harder for the body to use insulin effectively. While it usually goes away after birth, women who have had gestational diabetes are at higher risk of developing type 2 diabetes later in life. Managing blood sugar during pregnancy is crucial for the health of both mother and baby (National Institute of Diabetes and Digestive and Kidney Diseases).
Diabetes symptoms can develop quickly or gradually, depending on the type. Common symptoms include frequent urination, excessive thirst, unexplained weight loss, fatigue, blurry vision, slow-healing wounds, and numbness or tingling in the hands and feet. If left untreated, diabetes can lead to serious complications affecting multiple organs.
Several factors increase the risk of developing diabetes. Genetics play a role, as having a family history of diabetes raises the likelihood of developing the condition. Obesity is a significant risk factor, as excess weight, particularly around the abdomen, contributes to insulin resistance. Lack of physical activity also makes it harder for the body to regulate blood sugar levels. Diet plays a crucial role, with diets high in processed sugars, refined carbohydrates, and unhealthy fats increasing the risk of diabetes. Age is another factor, as type 2 diabetes is more common in people over 45, though younger individuals are increasingly affected. High blood pressure and high cholesterol often occur alongside diabetes and increase the risk of complications.
If diabetes is not managed properly, it can lead to serious health complications. High blood sugar damages blood vessels, increasing the risk of heart disease and stroke. The kidneys become overworked, leading to kidney disease or kidney failure. High blood sugar levels also damage nerves, causing pain, numbness, and loss of sensation, especially in the feet. Damage to blood vessels in the eyes can result in vision problems or blindness. Poor circulation and nerve damage increase the risk of foot infections, which, in severe cases, may require amputation.
While type 1 diabetes cannot be prevented, type 2 diabetes can often be delayed or avoided with healthy lifestyle choices. Eating a balanced diet with whole grains, lean proteins, and fiber-rich foods while reducing processed sugar and refined carbohydrates can help regulate blood sugar levels. Regular exercise, such as walking, cycling, or swimming, improves insulin sensitivity. Maintaining a healthy weight can significantly lower the risk of developing diabetes. Monitoring blood sugar levels regularly allows individuals to track changes and adjust their treatment as needed. Some people require medications, insulin injections, or both to control their blood sugar levels effectively.
Diabetes Mellitus is a condition that affects how the body processes sugar, leading to high blood sugar levels. While it can cause serious health problems, it is manageable with proper care and lifestyle changes. If you think you may have diabetes or are at risk, talk to a healthcare provider for early diagnosis and treatment.
Diabetes is a complex condition that affects millions of people, but there’s more to it than just high blood sugar. Beyond the basics, here are 10 lesser-known facts about diabetes that might surprise you.
Many people with type 2 diabetes don’t realize they have it until complications arise. Unlike type 1 diabetes, which has sudden and severe symptoms, type 2 can develop slowly, with symptoms so mild they go unnoticed. According to the Centers for Disease Control and Prevention (CDC), an estimated 8.5 million U.S. adults have undiagnosed diabetes. Regular screening is crucial, especially if you have risk factors like obesity or a family history.
Darkened skin patches, especially around the neck, armpits, or groin, could be a sign of insulin resistance. This condition, called acanthosis nigricans, often appears before a diabetes diagnosis and signals that the body is struggling to use insulin properly. A study published in the Journal of the American Academy of Dermatology found that acanthosis nigricans is more common in individuals with obesity and prediabetes.
CGMs are small wearable devices that track blood sugar levels in real time without finger pricks. These devices provide valuable insights into how food, exercise, and stress affect glucose levels, helping people with diabetes make more informed decisions. A 2021 study in Diabetes Technology & Therapeutics found that CGM use led to better glucose control and reduced hypoglycemia episodes in adults with type 2 diabetes.
While insulin pumps are commonly associated with type 1 diabetes, some people with type 2 diabetes also use them. These small, programmable devices deliver insulin continuously, reducing the need for multiple daily injections and improving blood sugar control. Research in Diabetes Care suggests that insulin pump therapy can help some individuals with type 2 diabetes achieve better glycemic control than traditional insulin injections.
Living with diabetes can increase the risk of depression and anxiety. Blood sugar fluctuations can impact mood, and the daily burden of managing the condition can be overwhelming. According to the American Diabetes Association (ADA), people with diabetes are two to three times more likely to experience depression than those without the condition, yet fewer than half receive treatment.
Artificial sweeteners and sugar substitutes are widely used, but some may still impact blood sugar levels. Sugar alcohols like maltitol can cause blood sugar spikes, while others like stevia and erythritol have minimal effects. A study in Nature found that some artificial sweeteners may alter gut bacteria and potentially lead to glucose intolerance, emphasizing the need for careful monitoring.
Many people don’t realize that diabetes can affect hearing. High blood sugar can damage small blood vessels and nerves in the inner ear, leading to hearing loss. A 2019 meta-analysis published in JAMA Otolaryngology–Head & Neck Surgery found that adults with diabetes have a 30% higher risk of hearing loss compared to those without diabetes.
Many people with diabetes experience high blood sugar in the morning due to the “dawn phenomenon.” This occurs when the body releases hormones like cortisol and growth hormone overnight, increasing insulin resistance and leading to higher glucose levels in the morning. The ADA suggests adjusting nighttime insulin doses or eating a small protein-based snack before bed to help manage morning spikes.
Cold temperatures can cause blood sugar to rise because the body produces more glucose to stay warm. Insulin absorption may also slow down in colder weather, making it harder to maintain stable levels. A study in Diabetes & Metabolism found that people with diabetes tend to have higher A1C levels in winter compared to summer, indicating seasonal fluctuations in glucose control.
Advancements in diabetes management, such as CGMs, insulin pumps, and smartphone apps, are helping people control their blood sugar more effectively. A 2022 study in The Lancet Diabetes & Endocrinology highlighted that diabetes education programs, when combined with technology, significantly reduce A1C levels and improve long-term health outcomes.
Diabetes is more than just managing blood sugar levels—it affects the entire body in ways many don’t realize. Staying informed about the latest advancements in diabetes care, recognizing early signs, and using new technologies can help improve quality of life.