The Truth About the Terrible Twos (And What’s Actually Happening)

Toddler tantrums can erupt in an instant over a banana you sliced instead of letting them peel, or the sippy cup they adored yesterday but steadfastly refuse today. These moments, which can feel innocuous to us, are actually monumental to a toddler.

As parents, it’s easy to chalk these big emotions up to the “terrible twos.” But, according to experts, there’s actually nothing terrible about kids at this stage. As Dr. Chloe Massey, Parent Coaching Advisor at Poppins, explains, this label is a misnomer, “The behavior might feel terrible to the parents, but at this age, it’s important to remember that behavior is communication. Toddlers are learning independence, testing boundaries, and figuring out how to handle big feelings with very few skills. There’s so much growth happening in this phase of development.” We’re always encouraging parents to reframe how they approach the “terrible twos.”.

Dr. Massey continues, “We’re always encouraging parents to reframe how they approach the ‘terrible twos.’ Because two- and three-year-olds are communicating with the only tools they have. Their language is still developing, their brains are growing quickly, and their ability to regulate big emotions is just beginning. It’s essential to remember that our toddlers are experiencing all the big feeling, but without all the coping mechanisms that they will one day come to develop. This is HARD!”

In this guide, we’ll break down what’s actually happening developmentally during the toddler years, how to respond with evidence-based strategies, and when tantrums are typical—and when it may be time to seek additional support—so you can move from daily power struggles to more connected and regulated days.

👉You don’t have to navigate big emotions (theirs and yours) alone. A great nanny can bring consistency, calm, and support to your daily routine. Find the right support for your family.

How the “Terrible Twos” Came About—And What’s Really Going On at This Stage

While the term “terrible twos” is an embedded part of today’s parenting lexicon, the phrase was actually coined back in the 1930’s by Arnold Gesell, a Yale University psychologist and pediatrician. Gesell observed and documented patterns in the way children develop, showing that all children go through similar and predictable sequences, though each child moves through these sequences at his or her own rate or pace (you can learn more about Gessell’s Maturation-Developmental Theory here). 

The term gained even more traction in the 1960s as parents and clinicians looked for shorthand to describe the intense developmental shifts that often surface between 18 and 36 months. During this stage, toddlers are wired to seek autonomy—it’s often where they first start saying “no,” testing limits and insisting on doing it themselves. At the same time, they lack the neurological maturity to regulate frustration or disappointment. The result? Big reactions, quick mood swings, and boundary-pushing that can feel relentless.

But what’s actually happening beneath and clouded by what we see as tantrums and defiance on the surface is emotional and developmental growth. Dr. Massey reveals, “There’s so much happening for a toddler during this stage of development. All of their executive function skills (like impulse control and emotional regulation, to name a few) are very much still developing. Plus, let’s not forget that toddlers crave autonomy in a world where they have very little. All this to say, it’s the perfect recipe for big feelings and behaviors, but here’s your reminder that this is actually a healthy and important part of development!”

In other words, the behaviors we label as “terrible” are actually not terrible at all, but signs of healthy, on-track development and they figure out the world around them. 

Why Toddlers Have Tantrums

If tantrums feel sudden, dramatic, or disproportionate to the situation, it’s because toddler emotions move faster than their emotional regulation and executive functioning skills. At this age, children are experiencing rapid brain development, but the parts of the brain responsible for impulse control, flexible thinking, and emotional regulation are still under construction. When a toddler melts down over the “wrong” color sock or being asked to leave the park, it’s because they feel overwhelmed and unequipped to handle the situation. 

Dr. Massey tells us that when you see them lose control it “isn’t a conscious choice for young children. They’re not deciding to have a tantrum—they’re reacting with the skills their developing brain has available. Emotional regulation is growing every day, but it’s far from fully developed.”

While their brains are developing, so is their language at this age. Between 18 and 36 months, a child’s vocabulary expands quickly, but it often can’t keep pace with what toddlers want to express. They have complex desires (“I wanted to do it myself but also I’m tired but also I wanted the blue one and why are you asking me to transition to a new activity when we just got here”) without the words to explain them. This means “the behavior we see is important, because it’s their age-appropriate way of communicating something. Over time, our role as parents and caregivers is to teach (and model) other (and more socially appropriate) ways to express big emotions,” says Dr. Massey.

Toddlers are also seeking autonomy and wired to test boundaries because they’re learning where they end and the world begins. Saying “no,” resisting transitions, and insisting on independence are all developmentally appropriate ways of building identity. So when your two-year-old insists on putting on their own shoes or feeding themself, they’re expressing independence (even if it does consistently make you 15 minutes late to every appointment).

Finally, basic needs matter more than many parents realize. Hunger, fatigue, overstimulation, and transitions can all lower a toddler’s already-limited capacity to cope and stay regulated. What looks like a dramatic overreaction is often a nervous system pushed past its threshold. 

Here’s Dr. Massey’s advice: “Next time your child has a tantrum, pause and ask yourself: Are they tired? Hungry? Hangry? When one (or multiple) of these needs are off, kids feel it, and yet they don’t yet have the skills to express that calmly. I always tell parents to plan for these predictable moments as much as you can. My rule is simple. Snacks everywhere. My bag, their bags, the car, the stroller… everywhere.”

Understanding the “why” behind tantrums doesn’t make them disappear. But understanding why they happen and what can lead up to a meltdown can help parents shift their lens from interpreting a toddler’s behavior as “bad” or “terrible” to recognizing a child who needs support, skills, and steady leadership.

 👉Whether you need part-time help or full-time care, we’ll match you with a nanny who understands toddler development and can support your parenting approach. Complete your family intake form to get started. 

How to Handle Toddler Tantrums with Confidence Instead of Frustration 

When you’re in line at the grocery stores (or anywhere in public) and your child is having a meltdown, it’s only natural to feel embarrassed, judged by others or dysregulated yourself. First, remind yourself: this is developmentally normal and I am a good parent. A tantrum is not a reflection of your parenting, but a moment of overwhelm in a small nervous system that doesn’t yet have the tools to cope.

Below, Dr. Massey shares evidence-based strategies to help parents respond with steadiness instead of shame or frustration:

• Regulate yourself first, to the best of your ability
  Remember that your toddler isn’t trying to do this. None of this is intentional. If you can remember that, then before responding, take a breath and pause. Toddlers co-regulate through you, meaning your nervous system sets the tone.
  

• Name the feeling, even if you can’t (and shouldn’t!) fix the problem
  Toddlers need language for what they’re experiencing. “You’re really upset we had to leave the park.” Naming emotions builds emotional literacy and reduces escalation over time.
  
• Hold the boundary with empathy and consistency
  Being responsive to their feelings doesn’t mean giving in. You can validate feelings while maintaining limits: “I see you are angry that you can’t eat the cookie, but I won’t let you hit me.”
  
• Change the scenery
  When toddlers are in meltdown mode, they don’t have the tools to recover themselves. Sometimes a pivot to a new place or a distraction is helpful in the moment. Focusing their attention on something else—instead of what they can or cannot have—can be a helpful strategy when dealing with a tantrum.
  
• Anticipate common triggers
  Hunger, fatigue, overstimulation, and tough transitions are frequent tantrum catalysts. Planning ahead with snacks packed and transition warnings given can reduce meltdowns before they begin.
  
• Debrief after
  It’s almost impossible to teach a child anything when they’re seeing red. After they’ve calmed down and are in a more regulated state of mind, you can discuss with them what happened. Keep it simple and brief: “Next time, if you’re angry, you can stomp your feet”. Skill-building is easier to communicate in calmer moments.

These strategies certainly won’t eliminate all tantrums, but they can help act as tools in your toolbox to rely on when your toddler inevitably experiences a meltdown. Because remember, tantrums are a normal part of development. And, over time, these steady, connected responses help toddlers build the very skills they’re currently missing: regulation, communication, and resilience.

The Role of Parents and Caregivers in the Toddler Years

During this stage of rapid growth, a child’s sense of safety and understanding of what’s right and wrong comes from consistency, clear boundaries, and steady emotional presence. When caregivers respond in reliable ways, toddlers learn that big feelings are manageable and that someone capable is in charge.

Whether your child has one primary caregiver or multiple caregivers, it’s imperative to be consistent to set them up for success. Here are some foundational ways to do so:

• Create consistent routines
  Predictable rhythms around meals, sleep, and transitions reduce anxiety and power struggles. Toddlers thrive when they know what’s coming next.
  
• Provide a safe space for big emotions
  Providing a safe space means allowing your kids to feel their emotions, no matter how big. That’s not to say that sometimes it isn’t embarassing…it certainly can be. Your job is to sit nearby, stay calmish, and communicate “I’m here,” all of which teaches children that emotions aren’t dangerous or something to avoid.
  
• Offer limited, age-appropriate choices
  Autonomy is a developmental drive at this age. Giving two acceptable options supports independence without overwhelming them. At the same time, boundaries around what’s safe and what isn’t is important to stay aligned on with all caregivers. For example, your toddler must always hold your hand when crossing the street since this is a safety issue and a non-negotiable
  
• Model regulation and repair
  Caregivers will get dysregulated. After all, we’re humans too! Lead by example when addressing your own dysregulation. A simple, “I raised my voice. I’m sorry. I’m going to try to not raise my voice next time. It’s hard for mommy to feel rushed.”
  
• Focus on skill-building, not punishment
  Remember that these big feelings are out of their control! None of this is a conscious choice. Shifting from correction to supporting helps build the long-term skills of emotional regulation and communication.

The toddler years can feel intense, but they are also formative. With steady leadership and developmentally-informed strategies, parents and caregivers who are consistent and aligned on their approach help lay the foundation for confidence, connection, and emotional health that lasts well beyond age two.

👉 We help families find experienced nannies who align on routines, discipline, and developmental milestones—so your child gets the stability they need. Get matched with a vetted and experienced nanny.

When to Call in Support

At some point, most parents wonder: Is this normal? Toddler tantrums and big emotions are common between 18 and 36 months—and well beyond for many children. But if meltdowns are consistently prolonged, intensely aggressive, disrupt daily life, leave your child inconsolable for long stretches, or you feel like you just need more support, it’s worth checking in with your pediatrician. Because if something feels off, it’s worth asking and seeking help. 

And, remember that it’s also okay to seek support simply because you feel overwhelmed or perhaps, you anticipate the next stage of parenting and want more support before you’re in the trenches. Beyond your child’s pediatrician, resources like Poppins offer both personalized parent coaches and on-demand pediatric care. They offer in-the-moment support and clear guidance for parents seeking answers to behavior questions, co-parenting challenges, sleep issues and more. 

The Toddler Years Are Temporary, Even Though It May Not Feel That Way

From the outside your two-year-old is throwing a tantrum over your request for them to wear a jacket in a winter snow storm. But unseen behind the tears, they’re building language, identity, autonomy, and emotional awareness all at once. 

“I have three kids, so I’ve lived through a lot of tantrums, and I know there are more to come,” says Dr. Massey. “What helps me most is remembering that toddlers aren’t choosing this behavior. When I can see this stage as a chance to teach them how to manage big emotions, it feels much more manageable… especially since those feelings never really go away, even in adulthood.”

To help toddlers navigate this tricky developmental stage, parents and caregivers can stay  engaged and aligned by responding consistently, holding clear boundaries, and leaning on expert guidance when needed. 

Because just like they quickly outgrew the swaddle and transitioned to a sippy cup, this season won’t last forever. But will last is the foundation you’re building: trust, resilience, and connection. And with the right support, even the so-called “terrible twos” can become a time of growth: for your child and for you.

👉Expert-backed strategies are just one piece of the puzzle. The right caregiver brings them to life. At Hello Nanny!, we help families hire experienced nannies who understand toddler behavior and support healthy development. Begin your personalized nanny search.

Terrible Twos FAQs

Why is two such a difficult age?

Two is tough because toddlers want independence but don’t yet have the language or emotional regulation skills to manage big feelings. Their brains are developing rapidly, which means lots of growth, but also, lots of overwhelm, which manifests in defiance and tantrums.

Why do they call it the terrible twos? 

The term “terrible twos” was coined to describe the spike in tantrums, boundary testing, and big emotions that often show up around age two. It stuck because it captures how intense this stage can feel for parents. But developmentally, this stage is more about learning and developing tools than “terrible” behavior.

How should I handle a tantrum?

Start by regulating yourself because your calm actually helps your child calm down. Validate their feelings, hold the boundary, and save the teaching for later when everyone is settled. Consistency and empathy go much further than punishment and time outs in this stage.

When do the terrible twos start and end? 

This often begins around 18 months and can last through age three (and sometimes beyond). Every child moves through this phase at their own pace. The intensity usually eases as language and regulation skills strengthen.

Does every child experience the terrible twos? 

Most children show some version of it, but it looks different for everyone. Some toddlers are more intense, others more easygoing. As with most development, temperament plays a role. Big feelings are normal, but the frequency and volume vary by child.