Narcotics include which type of drug?

One study found that physicians who were given candy were faster and more accurate in diagnosing a case study than physicians who weren't given candy. Additional research suggests that these results can best be explained by the idea that ____

a. sugar (temporarily) enhances problem-solving ability b. being in a good mood enhances problem-solving ability c. arousal (whether positive or negative) enhances problem-solving ability d. being given incentives enhances problem-solving ability

Why are those who suffer from diabetes with high levels of glucose in their blood likely to report feeling hungry??

a. ?because of a rebound effect b. ?because of heightened metabolic activity c. ?because of increased insulin levels d. ?because their cells are deprived of glucose