Heat or Panic? How to Tell the Difference and Calm Your Nervous System

From The Calm Room — Calming Anxiety

Your heart is racing, your head feels foggy, and you genuinely can't tell whether this is the heat or whether this is a panic attack starting. If you've been searching for heat anxiety or wondering why summer makes your anxiety worse, I want to reassure you straight away: you are not imagining it.

As a clinical hypnotherapist and former paramedic, I was called to far more heat-related emergencies than most people expect — and the symptoms nearly always looked the same. A racing heart, dizziness, brain fog, and that sinking sense of dread that something is seriously wrong. The trouble is, those are also some of the most familiar panic attack symptoms, which is exactly why, in real heat, it can feel almost impossible to tell the two apart.

Why your nervous system gets confused in the heat

Here's the honest answer: in a heatwave, it's very often both. Heat genuinely raises your heart rate, and it lowers your interoception — your brain's ability to accurately read your own body's signals. An already anxious nervous system reads that confusion as danger. It's a false alarm, not a true one, but your body can't always tell the difference without a little help. Understanding this is the first step in nervous system regulation during hot weather.

A simple breathing exercise to calm a racing heart

Whichever it turns out to be, we settle it the same way — by gently bringing your sympathetic nervous system back down with the breath. Try breathing in for three, holding for two, and out for five or six. That longer exhale is one of the quickest vagus nerve breathing exercises for anxiety, signalling to your body that it's allowed to come back down.

As you breathe, you might quietly repeat: My racing heart is chemistry, not catastrophe. I am warm, I am not in danger. My body is allowed to slow down.

Three calming tips for hot days that feel like anxious ones

1. Hydrate before you panic. Before you label a racing heart as anxiety, drink a full glass of water — dehydration alone can cause both, and it's the easiest false alarm to rule out.

2. The shade reset. Feeling overwhelmed? Find somewhere cool for five minutes before deciding what the feeling means. Let your temperature drop before your mind writes the story.

3. Check the thermometer. Sometimes the kindest thing you can do for your nervous system is hand it a fact instead of a fear.

If this helped you tell the difference between the heat and the anxiety, share it with someone sweating through the same weather and wondering the same thing. For the full library of guided meditations for anxiety relief and daily nervous system regulation practices, you'll find me on the Anchored app and at calminganxiety.fm.

Stay calm — and in everything, be kind.

This is everyday heat and everyday anxiety, not a medical diagnosis. If anything ever feels seriously wrong, please always get it checked properly by a real person who can see you.