We all know the feeling of being angry and irritated due to an empty stomach. Though ‘hangryness’ emerged as a pop-culture term, "being hangry" is real. Researchers have linked feelings of irritability and anger to low levels of blood sugar and the hormones released as a result. Those emotions can be found in people’s face expressions. So when promoting snack brand Graze’s new partnership with food delivery service Gorillas, we came up with a tasty solution.