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Diabetes is a problem with your body that causes blood glucose (sugar) levels to rise higher than normal. This is also called hyperglycemia. Type 2 diabetes is the most common form of diabetes. If you have type 2 diabetes your body does not use insulin properly. This is called insulin resistance. Type 2 diabetes, once known as adult-onset or noninsulin-dependent diabetes, is a chronic condition that affects the way your body metabolizes sugar (glucose), your body's important source of fuel. Learn about the symptoms of type 2 diabetes, what causes the disease, how it's diagnosed, and steps you can take to help prevent or delay type 2 diabetes.


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Eat smaller portions to reduce the amount of calories you eat each day and help you lose weight. Choosing foods with less fat is another way to reduce calories.

Type 2 diabetes

Drink water instead of sweetened beverages. Ask your health care team what other changes you can make to prevent or delay type 2 diabetes.

That's diabetes type 2 definition because people tend to exercise less, lose muscle mass and gain weight as they age. But type 2 diabetes is also increasing dramatically among children, adolescents and younger adults.

Prediabetes is a condition in which your blood sugar level is higher than normal, but not high enough to be classified as diabetes.


Left untreated, prediabetes often progresses to type 2 diabetes. If you developed gestational diabetes when you were pregnant, your risk of developing type 2 diabetes increases.

What is Type 2 diabetes and why does it occur?

If you gave birth to a baby weighing more than 9 pounds 4 kilogramsyou're also at risk of type 2 diabetes. For women, having polycystic ovarian syndrome — a common condition characterized by irregular menstrual periods, excess hair growth diabetes type 2 definition obesity — increases the risk of diabetes.

Complications Type 2 diabetes can be easy to ignore, especially in the early stages when you're feeling fine. But diabetes affects many major organs, including your heart, blood vessels, nerves, eyes and kidneys.

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Controlling your blood sugar levels can help prevent these complications. Although long-term complications of diabetes develop gradually, they can eventually be disabling or even life-threatening.


Some of the potential complications of diabetes include: Heart and blood vessel disease. Diabetes dramatically increases the risk of various cardiovascular problems, including coronary artery disease with chest pain anginaheart attack, stroke, narrowing of arteries atherosclerosis and diabetes type 2 definition blood pressure.

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Excess sugar can injure the walls of the tiny blood vessels capillaries that nourish your nerves, especially in the legs. This can cause tingling, numbness, burning or pain diabetes type 2 definition usually begins at the tips of the toes or fingers and gradually spreads upward.

Poorly controlled blood sugar can eventually cause you to lose all sense of feeling in the affected limbs.


Damage to the nerves that control digestion can cause problems with nausea, vomiting, diarrhea or constipation. For men, erectile dysfunction may be an issue. The kidneys contain millions of tiny blood vessel clusters that filter waste from your blood.

Diabetes can diabetes type 2 definition this delicate filtering system. Severe damage can lead to kidney failure or irreversible end-stage kidney disease, which often eventually requires dialysis or a kidney transplant.