Type 2 diabetes
Most people with the condition have type 2 diabetes. There are about 27 million people in the U.S. with it. Another 86 million have prediabetes. Their blood glucose is not normal, but not high enough to be diabetes yet.
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Your pancreas makes a hormone called insulin. It’s what lets your cells turn glucose from the food you eat into energy. People with type 2 diabetes make insulin, but their cells don’t use it as well as they should. Doctors call this insulin resistance. At first, the pancreas makes more insulin to try to get glucose into the cells. But eventually it can’t keep up, and the sugar builds up in your blood instead. Usually a combination of things cause type 2 diabetes, including
Genes. Scientists have found different bits of DNA that affect how your body makes insulin.
Extra weight. Being overweight or obese can cause insulin resistance and type 2 diabetes, especially if you carry your extra pounds around the middle. Now type 2 diabetes affects kids and teens as well as adults, mainly because of childhood obesity.
Metabolic Syndrome. People with insulin resistance often have a group of conditions including high blood glucose, extra fat around the waist, high blood pressure, and high cholesterol and triglycerides.
Too much glucose from your liver causes type 2 diabetes. When your blood sugar is low, your liver makes and sends out glucose. After you eat, your blood sugar goes up, and usually the liver will slow down and store its glucose for later. But some people’s livers don’t. They keep cranking out sugar.
Bad communication between cells. Sometimes cells send the wrong signals or don’t pick up messages correctly. When these problems affect how your cells make and use insulin or glucose, a chain reaction can lead to diabetes.
Broken beta cells. If the cells that make the insulin send out the wrong amount of insulin at the wrong time, your blood sugar gets thrown off. High blood glucose can damage these cells, too.
Prevention from type 2 diabetes.
Lose weight. Dropping just 7% to 10% of your weight can cut your risk of type 2 diabetes in half.
Get active. Moving muscles use insulin. Thirty minutes of brisk walking a day will cut your risk by almost a third.
Eat right. Avoid highly processed carbs, sugary drinks, and trans and saturated fats. Limit red and processed meats.
Quit smoking. Work with your doctor to avoid gaining weight, so you don’t create one problem by solving another.