Jun's School of the HeartNotes for the hard days

What Happens in Your Body During Panic

Understanding Panic·September 22, 2026

It's 2 a.m. and you're lying on a hospital bed with wires taped to your chest. Your heart is still pounding.

After a long wait, the doctor comes back. "Everything looks normal."

On the ride home, you feel less relief than frustration. It hurt that much, and nothing's wrong? Then what on earth just happened to me?

So many people ask me exactly this. Let's walk through it, step by step.

Your body really did respond

First, let's be clear about one thing. You did not make this up. In that moment, something genuinely happened in your body.

When your brain's alarm system decides "there's danger right now," your body gets ready to fight or run.

Your heart speeds up to push blood to your muscles. Your breathing quickens to pull in more oxygen. Digestion pauses, which is why your stomach can churn. And when your breathing gets fast enough, your hands and feet may tingle and your head can feel light.

Your body is throwing everything it has at what it believes is urgent.

Normal tests mean nothing is broken. The pain means that response really happened. Both are true at the same time.

The problem is the alarm went off by mistake

This response exists to protect you. If you step off the curb and a car comes flying toward you, your body jumps back before you've had a single thought. That's this system doing its job.

With panic, though, it switches on when there's no real danger.

Think about someone whose home was broken into once. For months afterward, they jolt awake every time the wind rattles a window. Their hearing isn't broken. They got badly scared once, so now even small sounds read as a threat.

Your brain is in the same place. It got scared, so your body became sensitive. Now even safe, ordinary sensations, like your heart speeding up after a flight of stairs, get read as warning signs.

Your body isn't broken. Your alarm has become oversensitive. What needs to change isn't your body. It's that sensitivity.

"But what if something really is wrong?"

That worry makes complete sense. If a symptom is new to you or feels different from usual, getting it checked by a doctor is the right call.

But if you've already been checked, and you still find yourself taking your pulse, searching symptoms late at night, or going back for the same tests whenever you feel anxious, it's worth pausing.

Each of those checks sends your brain a small message: There must be something dangerous here. The very thing you're doing to feel safe ends up making the alarm more sensitive.

Three things you can try

  1. Give it a name. When the sensations rise, don't try to push them away. Just say to yourself, Ah. The alarm's going off.
  2. Make your out-breath longer. Rather than big deep breaths in, let each breath out be a little longer than the breath in. It helps your body settle.
  3. Bring your attention back to what you were doing. It's fine if the sensations are still there. Just carry on, slowly.

The first one matters more than it looks. When you fight to make the feeling stop, your brain quietly learns, So it really was dangerous. Naming it does the opposite. You're re-filing the sensation, not as danger, but as discomfort.

Understanding changes how it feels

Some of the people I've worked with had been to the ER again and again over the years.

What changed things for them wasn't a day when the symptoms vanished. It was the day they understood what their body was doing and could say, Oh, that's the alarm.

Once they could sit with a racing heart and think, It's racing because I got startled, the same sensations stopped feeling as huge as they used to.

That's the direction

It won't shift all at once. Your alarm has been on high alert for a long time, and settling down takes time too.

It's hard at first, because it's new. There will be days you name it and your heart keeps racing anyway. That's okay. On those days the alarm went off and then passed, and that one experience makes the next time a little lighter.

But the direction is clear. Seeing your body as a broken machine, or seeing it as an alarm that's trying a little too hard to protect you: those are two completely different experiences of the very same sensation.

Your body isn't trying to hurt you.

It's trying to protect you. It just got scared.

If this helped, pass it on to someone going through the same thing.

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