Hunger can make you feel stressed, anxious, and even depressed
Link between hunger and mood revealed - health science news

Rats that experienced a sudden blood glucose drop suffered more from stress and anxiety, and experience a depressed mood. In a new study, rats received a metabolism blocker to induce the experience of hypoglycemia in one chamber, and received water in another chamber. Rats would then avoid the chamber where they felt hypoglycemic, and where they had more stress hormones in their blood. Also, the hypoglycemic rats were more sluggish, which was not due to decreased energy supply to the muscles, but rather a result of depressed mood, as this could be reversed by antidepressants. Thus, a sudden drop in blood glucose levels can change mood, making metabolism a factor to reckon with in the treatment of mood disorders, researchers say.

Read the full story: University of Guelph
Scientific publication: Psychopharmacology