Diabetes is a chronic disease caused by inadequate secretion of, or peripheral resistance to, insulin. It is characterized by hyperglycemia and hyperlipidemia. Diabetes, when poorly controlled, causes widespread damage to blood vessels and nerves, which can result in blindness, kidney failure, or heart attack.
There are two main forms of diabetes. Type 1 diabetes appears suddenly in childhood and is caused by autoimmune destruction of the pancreatic beta cells and loss of insulin production. Type 2 diabetes appears gradually in older people and is characterized by loss of insulin sensitivity - that is, cells no longer respond to signals from insulin. More than 90% of diabetic patients have type 2 diabetes.
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Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...