Diabetes is a disease in which your blood glucose, or blood sugar, levels are too high. Glucose comes from the foods you eat. Insulin is a hormone that helps the glucose get into your cells to give them energy. With type 1 diabetes, your body does not make insulin. With type 2 diabetes, the more common type, your body does not make or use insulin well. Without enough insulin, the glucose stays in your blood. You can also have prediabetes. This means that your blood sugar is higher than normal but not high enough to be called diabetes. Having prediabetes puts you at a higher risk of getting type 2 diabetes.
There is a risk that those who attempt it and fail could end up worse off, speculates Annie Hoang, a registered dietitian at Sunnybrook. An individual’s metabolism might switch into “starvation mode,” reducing the amount of energy needed at rest, she explains. That means some patients could regain all the weight they lost – and more – if they stop doing intermittent fasting.
Insulin serves as a “key” to open your cells, to allow the glucose to enter -- and allow you to use the glucose for energy. Without insulin, there is no “key.” So, the sugar stays -- and builds up-- in the blood. The result: the body’s cells starve from the lack of glucose. And, if left untreated, the high level of “blood sugar” can damage eyes, kidneys, nerves, and the heart, and can also lead to coma and death.
Engle has since run across the Sahara desert, among other death-defying feats that go well beyond what could be considered good for the joints. This was not a passing hobby or a way of dropping a few pounds. It was, rather, a purposeful blasting of the body. The running community provided for him fellowship and camaraderie, as it does for many people struggling with addiction. It also helped him realize that he didn’t have to give up being intense and passionate and obsessive; he just needed to channel these features in less destructive ways. “Do I run addictively? I’ve been accused of it,” he said. “But I’ve never lost my car after a run.”
A major feature of the disease is a condition known as insulin resistance. Insulin is a hormone that moves glucose (sugar), from the bloodstream into the body’s cells where it is used for energy. For a variety of reasons that are not fully understood, the body’s tissues don’t respond adequately to insulin and glucose then becomes elevated in the bloodstream.
Tyler played college basketball at Utah State from 2007-2011, and had the opportunity to play in three NCAA tournaments. His coaches and trainers always had Gatorade or candy on hand in case his blood glucose dropped during a game. Tyler tested his blood glucose right before training, and during halftime breaks. He says working out and playing basketball has helped him to better control his T1D.
Type 2 diabetes: Type 2 diabetes affects the way the body uses insulin. While the body still makes insulin, unlike in type I, the cells in the body do not respond to it as effectively as they once did. This is the most common type of diabetes, according to the National Institute of Diabetes and Digestive and Kidney Diseases, and it has strong links with obesity.