What is a potential effect of unmanaged diabetes?

Unmanaged diabetes can lead to a range of serious health complications, one of which is an increased risk of cardiovascular disease. High blood glucose levels over time can damage the blood vessels and nerves that control the heart, leading to heart conditions such as heart attack, stroke, and hypertension. Additionally, diabetes is associated with factors like high cholesterol, obesity, and inflammation, which further elevate cardiovascular risk.

In contrast to the correct option, the other choices suggest benefits or improvements that are not associated with unmanaged diabetes. For example, an improved immune response or enhanced energy levels are generally not outcomes of unmanaged diabetes; rather, individuals with diabetes often experience weakened immune function and fatigue due to high blood sugar levels. Similarly, while metabolic rate can fluctuate for various reasons, unmanaged diabetes typically leads to poorer overall metabolic health rather than improvements. Thus, understanding the serious implications of unmanaged diabetes highlights why the increased risk of cardiovascular disease is a significant concern.