... and loss of weight and strength. These symptoms may be mild or even absent in Type II diabetes, which is most common in overweight individuals over the age of 40. Type I diabetes usually strikes young people but also occurs in adults of any age. The symptoms may occur suddenly. Lack of insulin causes an emergency condition called diabetic ketoacidosis. This condition is characterized by excessive urination and thirst and may also involve loss of appetite, nausea, vomiting, and rapid deep breathing. Without immediate treatment, a patient may go into a state of diabetic coma, which can lead to death. Cause. In most diabetics, the cause of the disease is unknown. Diabetes is common in some families, but many diabetics have no known family history of the disease. Some evidence indicates that people who develop Type II diabetes are born with one or more inherited traits that predispose them to ...

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