Have fluffy kittens or puppies ever made you think, “I want to squeeze it until it bursts,” or even, “I want to sit on it and squash it”? Before you start wondering whether you’re antisocial, this feeling actually has a proper name: cute aggression. Why do cuter things make us more inclined to “bully” them? This article explores how the brain handles “cuteness overload.”

Author: Einstein.？
Reviewed by: 星海中的蓝玫瑰

When you scroll past videos of adorable “hakimi” cats or “hakiwoof” dogs, do you ever want to squeeze them—or even swallow them in one bite?

Then you realize how cruel that sounds and start to panic: “Do I have violent tendencies? Is something psychologically wrong with me?”

Don’t worry~ This is actually a very common psychological phenomenon. Psychologists call it cute aggression.

1. Psychologists noticed this phenomenon long ago

In 2013, two psychology researchers at Yale University, Oriana Aragón and Rebecca Dyer, conducted the first systematic study of this phenomenon and formally gave it a name.

They found that the urge to “squeeze something until it bursts” was not an odd habit confined to a few people, but a psychological response with recognizable patterns. In a 2015 paper published in Psychological Science, they proposed a central concept: dimorphous expressions of emotion. When an emotion becomes so intense that you can no longer “contain” it, your body releases the pressure through an expression that seems to mean the opposite.

Just as you might cry when you’re overjoyed or burst out laughing when you’re extremely nervous, cute aggression works on the same principle.

2. Simply put, your brain is overloaded with happiness

When you see a fluffy kitten or a chubby puppy, your brain’s pleasure system instantly “explodes.” Excitement floods in, more than your body can hold.

Your brain starts to panic: if this keeps up, you’ll “crash from cuteness.”

So it hits the brakes, releasing some of that emotion through seemingly “aggressive” urges to squeeze, bite, or squish. It pulls you back from the brink of being immobilized by cuteness.

Essentially, this isn’t violence; it’s your brain helping you “calm down.”

Figure 1 “Rodent-level cuteness overload”

3. There’s an “emotional seesaw” in your brain

Think of your brain’s emotion regulator as a seesaw.

On one end sits dopamine. When you see something cute, it surges, sending your happiness level soaring. But the seesaw can’t stay tilted forever, or you’ll become “paralyzed by cuteness.” So the brain has a “braking system”: areas including the prefrontal cortex are activated, possibly with the involvement of substances such as serotonin and endorphins—which are still being studied—to bring down the excess excitement.

As this seesaw rocks back and forth, your body displays those “invasive” or “aggressive” urges.

Neuroscience later found tangible evidence too: from the moment you see something adorable, a neural signal called N200 shows a marked fluctuation. Within 0.2 seconds, your brain has noticed the cute stimulus and starts its emotion-regulation process.

However, dimorphous expressions of emotion have a “safety threshold.” Once the emotional impact exceeds the brain’s regulatory capacity, healthy “emotion regulation” can slide into a “psychological breakdown.”

The story of Fan Jin passing the imperial examination is an extreme counterexample. When Fan Jin learned he had passed, he was overwhelmed with joy, clapping and laughing. Then he became delirious, rolled around on the ground, and lost awareness. It took a slap from his father-in-law, Butcher Hu, to bring him to his senses.

On the surface, Fan Jin’s “madness from joy” also seems like “uncontrolled behavior induced by positive emotion.” But its nature is entirely different from cute aggression: the former is a healthy, self-limiting regulatory mechanism, with the brain restoring its own balance within minutes. Fan Jin’s brain, by contrast, suffered a neuroendocrine overload and collapse under the impact of extreme joy. Surges in dopamine and cortisol exceeded the limits of physiological regulation, leading to a brief psychological disintegration. Clinically, this would be closer to acute stress disorder or a reactive mental disorder (not a diagnosis!! Just a literary analogy). A powerful external intervention—Butcher Hu’s slap—was needed to force his awareness back to reality. The fundamental difference between these two behaviors is whether the brain’s emotion regulation remains within a controllable range.

4. You’re far from alone: More than six in ten people have had this urge

Research shows that about 64% of people admit to thinking, “It’s so cute I want to squeeze it until it bursts,” and 74% have actually squeezed a small animal’s cheeks.

While reviewing the literature, I also found that this phenomenon is not unique to any one culture. Many languages have special words for it: our Hakka dialect has “xia” (that’s my own phonetic spelling); online there’s “rua”; Philippine Tagalog has “gigil,” Malay has “geram,” and Indonesian has “gemas.” They all describe the urge to squish and squeeze something cute when your hands just can’t keep still.

Of course, the intensity varies from person to person. Studies have found that women are generally more sensitive to “cuteness” than men, and people with greater empathy are also more likely to experience it. If you’re among the 36% who never have this urge, there’s no need to feel abnormal. Your emotional seesaw is simply steadier, and your emotional fluctuations may be smaller.

Figure 2 Someone who just can't resist nuzzling a dog

5. This is not a violent tendency!

One point deserves special emphasis: cute aggression ≠ actual aggressive behavior.

It comes from positive feelings, not negative emotions. Thoughts such as “I want to squeeze it until it bursts” or “I want to take a bite” are essentially part of a healthy emotion-regulation mechanism intended to restore emotional balance and prevent excessive excitement or sadness. Research has also found that the cuter a baby is, the stronger the desire to protect it—and the stronger the “aggressive” urge. The two rise together.

From an evolutionary psychology perspective, this mechanism may have a deeper purpose. If humans could only go limp with delight in front of a cute baby, who would feed it, hunt, or protect it? Cute aggression lets us stay capable of acting even while we’re “dizzy with cuteness.” In a seemingly rough way, the brain pulls us back from the brink of being immobilized by it.

A side note:

One more thing: before petting a cat or dog, let it sniff your hand and become familiar with your scent first (I wouldn’t recommend this with stray cats, stray dogs, or wild animals). If you touch it suddenly, it may attack you out of stress, which is risky. Also, don’t put a hand that smells of food in front of a rabbit’s mouth. It will bite. I teased a rabbit this way in my last practical class and got bitten ⊙᎔⊙.

References

[1] Aragón O R, Clark M S, Dyer R L, et al. Dimorphous expressions of positive emotion: Displays of both care and aggression in response to cute stimuli[J]. Psychological Science, 2015, 26(3): 259-273.

[2] Stavropoulos K K, Alba L A. “It’s so Cute I Could Crush It!”: Understanding neural mechanisms of cute aggression[J]. Frontiers in Behavioral Neuroscience, 2018, 12: 300.

[3] Zhou Yuan, Wu Xusheng. “So cute I want to squeeze it until it bursts”—is something psychologically wrong with me?[EB/OL]. Popular-science article, School of Psychology and Cognitive Science, East China Normal University, 2021.

[4] Li Aoli. So cute you want to attack it? How your brain works to keep you from “dying of cuteness”[EB/OL]. Popular-science article, School of Psychology and Cognitive Science, East China Normal University, 2020.

[5] Zhang Nina. Cute aggression: Why do we want to “destroy” something we adore?[J]. Popular Psychology, 2025, 32(9): 24-25.

[6] Zhang Mingming, Liu Tiantian, Ren Jie, et al. Tears of joy—dimorphous expressions of positive emotion[J]. Psychological Science, 2017, 40(3).