If you have ever been "hangry" -- a portmanteau for hungry and angry -- then you know what it is like to be irritable, bad-tempered or easily annoyed. While being hangry may seem like an excuse for unpleasant behavior, research shows that hunger can cause shifts in hormones, brain processes and nervous system that result in negative emotions like anger.
Honey bees get 'hangry' too
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A honey bee in mid-flight forages on clover. Clover is an important early-spring food source for honey bees in most regions of the United States.
A honey bee forages at a flower nectary.
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