We already know that being hungry can make us grouchy and irritable. There’s even a word for it : hangry. But now a study that used voodoo dolls confirms that it can provoke fights between husbands and wives.
The underlying reason is low blood sugar – researchers say we need glucose for self-control.
The study in the Proceedings of the National Academy of Sciences followed 107 married couples for three weeks. Each night, they measured their levels of the blood sugar glucose and asked each participant to stick pins in a voodoo doll representing his or her spouse. That indicated levels of aggressive feelings.
The researchers found that the lower the blood sugar levels, the more pins were pushed into the doll.
In fact, people with the lowest scores pushed in twice as many pins as those with the highest blood sugar levels.
And the spouses were usually not angry at each other. About 70 percent of the time, people didn’t put any pins in the doll,
So should you stave off those hunger pangs with a candy bar? The researchers said that might be a good idea if you’re about to discuss something touchy, but that fruits and vegetables are a better long-term strategy for keeping blood sugar levels up.