Child Psychology: How to Manage Fears, Anxiety and Tantrums
Does your child have paralysing fears, anxiety or uncontrollable tantrums? Discover how their brain works and when it's time to seek psychological help.
Does your child have paralysing fears, anxiety or uncontrollable tantrums? Discover how their brain works and when it's time to seek psychological help.
"Yesterday he cried inconsolably because he was scared to go into his own bedroom. Today she threw herself on the supermarket floor making a scene because I said no to a toy. And every morning his tummy hurts before school. I feel like I can't cope and I don't know what's wrong."
Raising a child today means facing an emotional whirlwind for which nobody gave us an instruction manual. As a child and adolescent psychologist in Valencia, I see daily how families arrive at my practice exhausted, seeking answers to the three great challenges of childhood: fears, anxiety and tantrums.
At first glance, they seem like three different problems. However, in child psychology we know that **they are three sides of the same coin:** an immature brain trying to process a world that, sometimes, is too much for them.
In this article, we're going to shine a light so you can understand what's happening in your child's mind in each of these situations, and I'll give you the keys to know when it's "a normal phase" and when it's time to ask for help.
The Hidden Connection: Why Fear, Anxiety and Tantrums Go Hand in Hand
To understand your child, I invite you to learn about a fascinating psychology concept called **The Window of Tolerance.**
We all have a "window" or optimal zone where we feel calm, safe and able to learn and relate to others. But when a child faces a stressor (a change in routine, an exam, a loud noise, or being told "no" to something they want), their nervous system can shoot out of that window:
**If it goes out the top (Hyperactivation):** The brain enters "fight or flight" mode. This is where anxiety, aggression and explosive tantrums appear. The child is overwhelmed with energy they don't know how to channel.
**If it goes out the bottom (Hypoactivation):** The brain enters "freeze" mode. This is where paralysing fear, extreme avoidance and isolation appear. The child shuts down and hides.
Understanding this changes everything: your child doesn't have a tantrum to "annoy you", nor are they afraid to "get attention". **Their nervous system has gone into overdrive and they need you to be their anchor** to return to their window of tolerance.
1. Childhood Fears: From Monsters to Reality
Fear is a primary and necessary emotion. A child without fear wouldn't survive, because they'd cross the road without looking. From an evolutionary perspective, fears change with age:
- **Ages 0 to 2:** Fear of loud noises, strangers and separation from parents.
- **Ages 3 to 6:** Fear of the dark, monsters, ghosts or animals (imagination runs wild and they can't clearly distinguish fantasy from reality).
- **Ages 7 to 12:** Fears become more realistic: fear of physical harm, of parents dying, of school failure or being rejected by friends.
**When should you worry?** Fear is normal, but a phobia is not. If the fear of dogs means the child can't go to the park, or if fear of the dark means an 8-year-old absolutely cannot sleep in their own bed and has panic attacks, the fear has crossed the line and requires [Emotional Regulation](/servicios/regulacion-emocional-autoestima) intervention.
2. Childhood Anxiety: The Fear That Lives in the Future
While fear is a response to a present danger (I see a big dog and get scared), anxiety is the fear of what *might* happen in the future.
Children rarely say "Mum, I have anxiety." As we explain in our in-depth guide on [childhood anxiety symptoms](/blog/ansiedad-infantil-senales-sintomas), anxiety disguises itself as physical problems:
- Constant tummy aches or headaches on Sunday afternoons.
- Needing to ask you the same question a hundred times: "What if you're late picking me up? What if I get ill at school?"
- Extreme perfectionism or erasing homework a thousand times for fear of making a mistake.
Anxiety is exhausting for a child's brain. If left untreated, the child ends up developing severe avoidance behaviours, refusing to go to school or to birthday parties.
3. Tantrums: The Pressure Cooker Explosion
If fear and anxiety are internal emotions, the tantrum is their noisiest behavioural manifestation.
As we covered in our article on [how to manage tantrums practically](/blog/como-gestionar-rabietas-regulacion-emocional-ninos), young children (between 2 and 4 years old) have tantrums because their prefrontal cortex — the part of the brain that controls impulses — is still immature.
However, if your child is 6, 8 or 10 years old and still has uncontrollable anger explosions, breaks things or takes hours to calm down, the tantrum is a symptom that there's something more. Often, behind an "angry and aggressive" child there's a deeply anxious child, one who is suffering bullying, or who has [undiagnosed neurodivergence](/blog/tdah-tea-diagnostico-terapia-ninos) (such as ADHD or [Giftedness](/blog/altas-capacidades-intelectuales-evaluacion-ninos)).
How Can You Help at Home? The Power of Co-Regulation
The biggest mistake we adults make is trying to use logic when the child is outside their Window of Tolerance.
- If they're terrified of monsters, telling them "they don't exist, go to sleep" doesn't calm them.
- If they have anxiety about an exam, telling them "you know it all, don't worry" doesn't ease them.
- If they're having a tantrum, shouting "behave!" only makes the explosion worse.
What does work is **co-regulation:** lending your calm to their overwhelmed brain. Get down to their level, validate their emotion (*"I can see you're very scared/angry, that's normal, I'm here"*) and help them breathe or find a physical safety anchor (a hug, if they'll allow it) before trying to reason.
When Love Isn't Enough: Why Seek Professional Help
Sometimes, no matter how much love, patience and parenting books we read, the situation at home overwhelms us. And that's OK. You don't have to know how to defuse chronic anxiety or an incapacitating phobia.
At Gen Psychology, our afternoons are exclusively dedicated to children and teenagers. Through therapeutic play and age-adapted techniques, we teach them to understand their "Window of Tolerance", to recognise when they're getting anxious, and to use tools to return to calm on their own.
We also know that supporting a child with constant fears or tantrums creates enormous stress for parents. That's why our mornings are reserved for [Adult Therapy](/servicios/terapia-individual-adultos) and [Family Guidance](/servicios/terapia-familiar). Taking care of yourself and your own anxiety levels is the essential first step to being your child's safe haven.
**You don't have to keep suffering in silence.** Book a first assessment and together we'll find the path back to calm.