How Can Having High Blood Glucose Affect Me?
Diabetes is much more than just a relative lack of insulin. In one sense, it is a disease that affects the blood vessels, or capillaries. A high concentration of sugar in the blood from relative lack or sensitivity of insulin is still not completely understood. However, it has detrimental effects on the blood vessels and they gradually cease to function properly. Since every organ or tissue in the body depends upon capillary flow to transmit oxygen and glucose and remove waste products, this eventually leads to end-organ damage supplied by those capillaries.
As every cell is dependant to a large degree on glucose for its fuel, any impairment in its supply or being able to properly metabolize that glucose will lead to impairment in the function of those cells and organs. Consequently, the tissues that have the highest demand for proper blood flow and utilization are most susceptible to the damage of impaired flow or metabolism, e.g., the kidneys, heart, nerves, retina. A lack of blood flow and oxygen to the tissues can also result in many infections, and often the only treatment left is amputation. A high concentration of sugar can also cause increased fatigue and weight gain. It does not kill instantly, but causes long-term, permanent damage over many years with lethal complications. That is why we often take a lax attitude: slow and gradual—but certain and fatal.
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