Hunger plus anger equals hanger. It's a thing. And science now backs that up.

You could be one snack away from sabotaging your relationships and career. An exaggeration? Only slightly.

A new survey on hanger proves the phenomenon exists.

That "hanger" is actually fluctuating blood sugar that leads to impulsive decisions, words you don't mean (or shouldn't say out loud) and interactions you might regret.

Dr Neha Pathak is part of WebMD's medical team. Her job is to make sure the site's articles and videos are medically sound. She says the hangry study confirms what moms have known forever.

"Absolutely, so I think what we've known for a long time, is when we have low blood sugar it puts us up higher risk of being irritable getting angry and being impulsive. So this new study kind of adds to that, by showing us that when we're hungry, we also are at higher risk of negative emotions on a day to day basis," Pathak said.

The takeaway?

You might make some really bad calls in life because you needed a snack.

Think about that. You could be a handful of almonds away from setting your body and mind up for a blowup or for success.

One snack!

• How scientists studied hanger