According to evolutionary psychologists behind the study, yawns aren’t just about fatigue or boredom. Think of it as nature’s version of tapping someone on the shoulder and whispering, “Stay sharp.”Yawns, Spiders, and Cockroaches—Oh My! In this new study, psychologists tested whether watching people yawn would change how quickly participants could spot spiders and cockroaches hidden among distractor images. Using eye-tracking technology, they discovered that after seeing yawning videos, participants were faster at detecting both spiders and cockroaches and less likely to get distracted by irrelevant images. Imagine being in a late-night study group, on a crowded subway, or behind the wheel on a long drive.