Diabetes
Diabetes is a life-long disease marked by high levels of sugar in the blood. It can be caused by too little insulin (a hormone produced by the pancreas to regulate blood sugar), resistance to insulin, or both.
Glucose- a form of sugar in the blood which acts as a main source of fuel for our body. It is created when our body breaks down food that we eat into energy with the help of insulin. Insulin acts like a key to unlock the body's cells, so glucose can enter and serve as fuel for the cells. This process helps to regulate the amount of sugar in the bloodstream. In people with diabetes, however, the pancreas either produces little or no insulin, or the cells do not respond appropriately to the insulin that is produced causing blood sugar level to rise.
High blood sugar sets off processes that can lead to complications, like heart, kidney, and eye disease, or other serious problems
Symptoms
The symptoms are due to persistent high levels of sugar in the circulating blood :