That is, hungry + angry. As researcher Amanda Salis confirms, the physiology of hunger creates emotional effects.
The human brain, she writes, “is critically dependent on glucose to do its job.” Without glucose,
you may find it hard to concentrate, for instance, or you may make silly mistakes. Or you might have noticed that your words become muddled or slurred […] Another thing that can become more difficult when you’re hungry is behaving within socially acceptable norms.
As a result of brain chemicals triggered by hunger, some people “tend to show high levels of impulse aggression.”
That can certainly be unpleasant in the office at that dangerous period around 3:30pm, but imagine the impact of those physiological reactions in an extreme situation.