Tuesday 1 October 2013

What is Diabetes Mellitus?



Diabetes is an incurable disease; according to study 47 million people have diabetes in the world.
More than 80% of diabetes deaths occur in countries with low and middle income. According to WHO projections, the number of diabetes deaths will double between 2005 and 2030. Diabetes occurs when the body fails to properly use sugar (glucose), which is a "fuel" essential to its operation. Glucose, poorly absorbed by the cells accumulates in the blood and is then released into the urine. This abnormally high concentration of glucose in the blood is called hyperglycemia. In the long run, it can lead to complications in the eyes, kidneys, heart and blood vessels.

Diabetes can result from a failure, partial or total pancreas to produce insulin, a hormone that is essential for the absorption of glucose by the cells. It can also be caused by an inability of the cells themselves use insulin to absorb glucose. In 2 cases, the cells are deprived of their main source of energy; it follows necessarily important physiological consequences, such as extreme fatigue or problems with wound healing,
Glucose comes from two sources: carbohydrate foods that we eat and the liver (which stores glucose after a meal and empties into the blood as needed). Once extracted from the food by the digestive system, glucose passes into the bloodstream. For the body's cells can use this vital energy source, they need the intervention of insulin. Insulin is a hormone that regulates the concentration of sugar in the blood. Hyperglycemia, or high blood levels of sugar, is a common effect of uncontrolled diabetes over time leads to serious damage to many organ systems, especially the nerves and blood vessels.

A healthy diet, regular physical activity, maintaining a normal weight and stopping smoking can prevent or delay the onset of type two diabetes. 

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