The Body Keeps the Score

One of the most confusing things about anxiety is how physical it feels. People who don’t experience it often think anxiety is just “worrying too much.” But if you’ve lived with it, you know: anxiety lives in your body first. Your chest tightens. Your heart pounds. Your stomach drops. Your hands shake. Your breathing goes shallow. You feel dizzy, disconnected, like something is deeply wrong. And then your brain kicks in, trying to explain why your body feels this way. That’s when the spiral starts. But here’s what’s actually happening: your body is responding to a perceived threat. Not an imagined one—a perceived one. To your nervous system, the difference doesn’t exist.

What Happens During a Threat Response

When your brain detects danger—or something it’s learned to interpret as danger—it activates your sympathetic nervous system. This is your fight-or-flight system. It’s automatic. It doesn’t wait for permission. Within milliseconds, your body releases adrenaline and cortisol. These stress hormones trigger a cascade of physical changes designed to help you survive:

• Your heart rate increases to pump more blood to your muscles
• Your breathing quickens to take in more oxygen
• Blood flow shifts away from your digestive system and toward your limbs
• Your pupils dilate to take in more visual information
• Your muscles tense, preparing to move
• Non-essential systems (like digestion and immune function) slow down

This response evolved to help humans escape predators. If you were being chased by a lion, you’d want all of this to happen. You’d need the energy, the speed, the focus. But when this response gets triggered by a work email, a social situation, or waking up in the middle of the night, it feels wrong. It feels like something is broken. It’s not. Your system is just reacting to something that doesn’t require running for your life.

The Heart

What it feels like:

Your heart races, pounds, skips beats. You might feel it in your chest, your throat, your ears. It can feel like it’s beating too hard, too fast, or irregularly. Sometimes it feels like it might stop.

What’s actually happening:

Your heart is pumping faster to send oxygen-rich blood to your muscles. This is your body’s way of preparing to move quickly. When the threat isn’t physical, your heart is doing this work with nowhere for the energy to go.

Why it’s scary:

Because heart symptoms make us think something is medically wrong. Racing heart = heart attack, right? Not usually. Anxiety-induced heart palpitations are common and, in most cases, not dangerous. But the fear of them can make them worse, creating a feedback loop.

The Breath

What it feels like:

Your breathing gets fast and shallow. You might feel like you can’t get a full breath, like there’s not enough air, like you’re suffocating. You might yawn repeatedly or sigh without meaning to.

What’s actually happening:

Your body is trying to take in more oxygen quickly. But when you’re not actually running or fighting, this over-breathing can lead to hyperventilation—when you exhale too much carbon dioxide. This creates a chemical imbalance that makes you feel lightheaded, tingly, or disconnected.

Why it’s scary:

Not being able to breathe feels like dying. It’s primal. And the more you focus on your breath, the more manual it becomes, which makes it feel even more wrong.

The Stomach

What it feels like:

Nausea. Butterflies. A pit in your stomach. Cramping. Diarrhea. Loss of appetite. Feeling like you might throw up.

What’s actually happening:

When your fight-or-flight response kicks in, blood flow is redirected away from your digestive system. Digestion isn’t a priority when your body thinks you’re in danger. This slowdown (or sometimes speedup) of your GI system creates all kinds of uncomfortable sensations.

Why it’s scary:

Stomach symptoms are unpredictable and embarrassing. They make you feel out of control. And if you’re already anxious about a situation, the fear of getting sick in that situation makes the anxiety worse.

The Muscles

What it feels like:

Tension in your shoulders, neck, jaw. Trembling hands. Legs that feel weak or shaky. Muscle fatigue. Feeling wired and exhausted at the same time.

What’s actually happening:

Your muscles are tensing in preparation for action. If you’re anxious for a long period of time, your muscles stay contracted, which leads to soreness, stiffness, and exhaustion.

Why it’s scary:

Muscle tension can mimic other conditions—tight chest can feel like a heart problem, jaw tension can cause headaches, leg weakness can make you feel like you’re going to collapse. It’s disorienting.

The Thoughts That Follow

Once your body is activated, your brain starts looking for explanations. This is where catastrophic thinking comes in. You feel your heart racing, so you think: “Something’s wrong with my heart.” You feel dizzy, so you think: “I’m going to pass out.” You feel nauseous, so you think: “I’m going to throw up in front of everyone.” You feel disconnected, so you think: “I’m losing my mind.” These thoughts aren’t random. They’re your brain’s attempt to make sense of what your body is experiencing. But they amplify the response. The thought creates more fear. More fear creates more physical symptoms. More physical symptoms create more thoughts. This is the anxiety loop.

Why Physical Symptoms Make It Worse

Anxiety would be a lot easier to manage if it was just thoughts. Thoughts can be challenged, reframed, dismissed. But when your body is screaming that something is wrong, it’s much harder to talk yourself down. Your rational brain says, “You’re fine, this is just anxiety.” But your body is sending signals that say, “No, we are absolutely not fine.” And your body is louder. This is why grounding techniques, breathing exercises, and physical movement matter. You can’t think your way out of a nervous system response. You have to give your body evidence that it’s safe.

Breaking the Loop

The good news: you can interrupt this cycle. Not by forcing your body to calm down, but by working with it.

Name what’s happening.

When you notice physical symptoms, label them: “This is my heart rate increasing because my nervous system is activated. This is adrenaline. This is my body preparing for a threat that isn’t there.”

Slow your exhale.

Your inhale activates your sympathetic nervous system (fight-or-flight). Your exhale activates your parasympathetic nervous system (rest-and-digest). Breathing in for 4, out for 6 or 8 signals to your body that you’re safe.

Move the energy.

Your body has released adrenaline and cortisol to prepare you to move. If you don’t move, that energy has nowhere to go. Walk. Stretch. Shake your hands. Dance. Give your body a way to discharge what it’s holding.

Ground yourself in the present.

Anxiety pulls you into the future (what if this happens?). Grounding brings you back to now. Notice 5 things you can see, 4 you can hear, 3 you can touch, 2 you can smell, 1 you can taste. This isn’t distraction—it’s reminding your nervous system where you actually are.

Stop fighting it.

The more you resist the physical sensations, the more your body interprets them as dangerous. “If I’m this afraid of my own heartbeat, it must mean something is really wrong.” Instead, practice allowing the sensations to be there. “My heart is racing. That’s uncomfortable, but it’s not dangerous. It will pass.”

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Your body isn’t betraying you. It’s doing exactly what it’s designed to do. The work isn’t to stop it from reacting. The work is to teach it, over time, that it doesn’t need to. You’re safe. Even when it doesn’t feel like it. Especially then.