Yawning is one of those strange human behaviors that is both contagious and involuntary - try as you might, you can't force yourself to genuinely yawn on command. Even more interestingly, yawning begins before birth, with studies showing that fetuses can be observed yawning in the womb.
Why we yawn: more than just tiredness
While we typically associate yawning with sleepiness or boredom, it serves other intriguing functions. Yawning acts as a gentle reset for the brain and body, helping us wake up, stay alert, or regain focus. It can serve as a subtle nudge back into the present moment - a kind of mental course correction. For instance, we might yawn not only when we're tired but also when transitioning between mental states, such as moving from wakefulness to sleep or vice versa. We also yawn at moments of anticipation, as if preparing for a shift in activity or mood. This behavior can occur during periods of stress, boredom, sexual arousal, or even when switching between tasks.
Contagious yawning: a glimpse into social connection
One of the more curious aspects of yawning is its contagiousness. Seeing or even thinking about someone else yawning often triggers the reflex in us too. Research suggests that contagious yawning may reflect an ancient form of empathy. According to a study by Perriol and Monaca (2006), the spread of yawning in social groups could represent a primitive way of fostering social bonding and emotional connection. This insight gives a new perspective on an otherwise mundane act: a shared yawn might hint at a deeper, instinctual empathy within social creatures like us.
A take-home thought
So the next time you catch yourself yawning - whether you're feeling tired, anticipating something exciting, or switching gears - know that it’s not just a signal of fatigue. It’s a bridge between mental states, a way to stay in sync with those around you, and perhaps a window into our evolutionary past.
~Karola Marais, Sleep Consultant