Tantrums aren't a sign you're failing. They're a sign your kid is two.

It happened in the cereal aisle. Or at the end of the playdate. Or because you cut the toast into squares instead of triangles. Your sweet kid turned into a screaming, flailing, boneless puddle, and every head in the room turned to look at you.

If you've ever walked out of a store carrying a furious toddler like a sack of flour, wondering what you're doing wrong, please hear this: probably nothing. Here's what the research says.

Tantrums are normal. Really normal.

The American Academy of Pediatrics says tantrums are a normal part of development, most common between ages 1 and 3. The American Academy of Child and Adolescent Psychiatry notes that many toddlers have at least one a day, typically lasting anywhere from 2 to 15 minutes.

A Northwestern University study of nearly 1,500 preschoolers found that about 84% had tantrums at least sometimes (HealthDay). What was not typical? Daily tantrums in the preschool years: fewer than 1 in 10 kids had those. So a tantrum here and there, especially when your child is tired, hungry or told no, is just childhood.

What's actually happening in there

Toddlers have big feelings and very small tools. They want things intensely, they understand more than they can say, and the part of the brain that helps put on the brakes is still years from finished. A tantrum is what overwhelm looks like before a child has the words and skills to handle it.

Researchers who studied the tantrums of 335 young children found that 75% were over in five minutes or less. They also found a pattern: anger peaks right at the start and then fades, while sadness and the wish for comfort grow toward the end. That's why a child who screamed "go away!" often ends up wanting to crawl into your lap. They're not manipulating you. They're coming back to you.

What helps in the moment

• Stay close and stay calm. Your calm is the thing they borrow until they have their own. Get down to their level, keep your voice low, and say less.
• Name the feeling. "You're so mad that we have to leave." A UCLA brain-imaging study found that putting feelings into words calms the brain's alarm center, at least in adults (ScienceDaily). Naming it for a child who can't yet is a gift.
• Hold the limit kindly. You can accept the feeling and still not buy the candy. "You really want it. We're not getting it today." Giving in teaches that tantrums work. Shaming teaches that feelings are bad. You can skip both.
• Keep everyone safe. The AAP advises not ignoring hitting, kicking, biting or throwing. Calmly move them, or move what they're throwing, away from people.
• Wait out the storm, then reconnect. Once the anger fades, offer the hug. Talk about it later, briefly, when everyone is calm.

What helps before it starts

The AAP's practical tips are refreshingly simple:

• Watch hunger and sleep. A snack in your bag and a protected nap prevent a surprising number of meltdowns.
• Offer small choices. "Red cup or blue cup?" gives a toddler some control without opening a negotiation.
• Warn about transitions. "Two more slides, then we're going home."
• Notice the good moments. Specific praise ("You waited so patiently!") makes calm behavior more likely to happen again.

Over time, talking about feelings pays off. In a study of 506 parents of preschoolers, parents who noticed and talked about their kids' emotions had children with fewer behavior problems.

When to check in with your pediatrician

Most tantrums are just part of growing up. Researchers say the ones worth a closer look are unpredictable, very long or destructive, and studies of preschoolers with depression or behavior disorders found their tantrums were more often violent or self-harmful, and harder to recover from. Talk to your pediatrician if your child:

• Often hurts themselves, other people or things during tantrums.
• Has tantrums most days in the preschool years, or they seem to come out of nowhere.
• Struggles to calm down even with your help, or tantrums are getting worse instead of better after age four.
• Or if you're worried. You know your child, and asking is always OK.

And your big feelings?

Here's the part no one puts on the parenting charts: tantrums are hard on us too. It's OK to feel embarrassed, angry or completely done. It's OK to say "I need a minute" and take a breath (or hand off to another grown-up, as the AAP suggests).

And if you yell? Repair it. "I yelled, and I'm sorry. I was frustrated. Let's try again." That small moment teaches your child something powerful: big feelings happen to everyone, and love is still there when they pass.

You're not raising a kid who never melts down. You're raising a kid who learns, slowly and with your help, what to do when they do. That takes years, and it's happening right now, one cereal aisle at a time.

This is general information from one parent to another, not medical advice. Your pediatrician knows your child best, so check in with them about anything that worries you.