Final answer:
Insulin resistance and high blood glucose can cause increased pigmentation of the skin. This can be seen in conditions like Addison's disease.
Step-by-step explanation:
Insulin resistance and high blood glucose can cause the skin to have increased pigmentation. This is seen in conditions like Addison's disease, where hyperpigmentation of the skin is a characteristic sign. The excessive production of insulin, called hyperinsulinism, can also cause hypoglycemia, low blood glucose levels, which may result in symptoms like sweating, tremors, and fainting attacks.