occurs when there is not enough production of insulin or insulin resistance. It is also related to other health conditions e.g. high blood pressure or high cholesterol levels
The mechanism through which diabetes causes damage to other systems is complex but it is mainly due to the toxic effects of prolonged high glucose levels.
Kidney damage (Diabetic Nephropathy)
Diabetes is a leading cause of kidney damage 
and affects its ability to filter toxic substances from the blood. If the amount of protein in urine elevates, it could be a sign that your kidneys are not functioning properly.
Eye disease (Diabetic retinopathy)
Most people having diabetes develop some form of eye disease causing reduced or total loss of visual function. Diabetes remains an important cause of blindness in developed countries .
Continuously high levels of blood glucose along with high blood pressure and high cholesterol can leads to retinopathy .
Diabetes increases the risk of developing high blood pressure and is linked with high cholesterol levels, which contributes to increase risk of heart attack and cardiovascular diseases .
The nervous system (Diabetic Neuropathy)
Diabetes can cause damage to nerves throughout your body. This can lead to problems with digestion, erectile dysfunction, sweating abnormalities, and cardiovascular diseases .
The most common affected areas are the extremities, particularly feet.
In older adults with type II diabetes, there is an accelerated loss of leg muscles or quality 
Diabetes affects the overall health of an individual. It should be managed to avoid any complications, by maintaining glucose and cholesterol levels and regular check-ups [17, 18]
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