A healthy person's immune system helps the body resist infections. It knows how to discriminate between what is good for the body and what is bad for it. The immune system even remembers infections it resisted in the past so it can fight them more effectively a second time around. When a person becomes diabetic, however, their immune system turns against them to destroy cells that produce important hormones. This leads to high blood glucose levels that significantly increase the risks of heart disease and other serious illnesses. Type 2 diabetes sufferers can control their diabetes with diet and exercise. However, type 1 diabetes sufferers need to give themselves injections.
If a laboratory blood test shows that a patient's blood sugar is greater than 200 mg/dl without fasting, or greater than 126 mg/dl while fasting for at least eight hours, they need to get a professional medical diagnosis. Such high levels of blood sugar are typical of people with diabetes. Even if the blood sugar level is simply much higher than average, it gives cause for concern. Many people who are in a pre-diabetes stage still have the opportunity to avoid becoming diabetic through changes in diet and exercise.
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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional.