The Anxiety That Doesn't Start in Your Mind

Last week I was at a cabin at 7,800 feet. My daughter had one of those nights where she cried out just often enough that every time I drifted off, she cried out again. I woke up exhausted, drank three cups of whatever industrial-strength coffee was there, and realized halfway through that I was more thirsty than anything. I skipped breakfast because I'd miscalculated the timing of a call I had coming up. Around us, other families with kids. Lots of kids.

The call wasn't catastrophic. Nothing was on the line. But I felt a wave (more like a tsunami) of anxiety roll in and watched my brain scramble to explain it, connecting loose dots to things that were only tangentially related to the call, to anything that might justify the feeling. I was in a cabin in the mountains, surrounded by people I love, in the middle of something that should have felt like rest. And I was overcome by a crushing sense of panic. What is happening to me?

When Physiology Pulls the Fire Alarm

Some anxiety does not begin with a worried thought. It begins in the body. Like the tail wagging the dog, the brain takes raw signals from inside the body (what researchers call interoceptive cues) and builds a threat story afterward to explain a feeling it did not generate from thoughts. And here is the part that matters: the starting point changes nothing about the experience. Whether anxiety originates in the body or in the mind, it feels exactly the same. 

This is what we call the Somatic Spiral. Let's break down how I got myself into this panic-pickle:

• Altitude. At 7,800 feet, the air holds roughly 25 percent less oxygen than at sea level. The body responds by raising heart rate and quickening breath to compensate, two signals the brain reads as signs of threat even when none exists.

• Sleep disruption. A single bad night raises cortisol and amplifies the amygdala's response to threat, sometimes by as much as 60 percent. The brain becomes a better fear detector and a worse reasoner, precisely when you need it the other way around.

• Dehydration. Even mild fluid loss raises heart rate and cortisol, two signals the brain interprets as signs that something is wrong. At altitude, you lose water faster just by breathing the dry air, so the deficit builds without you noticing.

• Caffeine. It works by blocking adenosine receptors, the ones that normally calm your nervous system down. The result is an elevated heart rate, heightened alertness, and a low-grade physiological arousal that is, chemically, nearly identical to anxiety. In one study, 71 percent of people with panic disorder said a dose of caffeine felt indistinguishable from one of their actual panic attacks.

• Hunger. When blood sugar drops, the body releases cortisol and adrenaline to compensate. Those are the same stress hormones that accompany anxiety, and the brain, running low on fuel, is in no position to talk itself out of the story it starts telling.

• Noise. The amygdala learns over time which sounds signal danger, and it does not need your conscious permission to act on that assessment. A loud, chaotic environment raises cortisol and keeps the threat-detection system on low-level alert, whether or not you register the noise as bothersome. People who live near airports carry measurably higher cortisol.

This is what we call the perfect somatic storm. Even though I was in a completely safe environment with nothing really pressing to distress over, my body was screaming 'Danger! Danger! Danger!' In turn, my brain filled in the meaning from whatever context was handy.

None of this needs a single anxious thought to get going. The body moves first. The story comes second. And if you happen to be wired to track your own internal signals closely, which describes most people who put a lot of pressure on themselves, your brain is quicker to read an ordinary sensation as a sign that something is wrong.

A Drip of Chemistry, A Wave of Panic

Researchers at Columbia ran a study on people who already lived with panic disorder (Liebowitz et al., 1984–1985). These were people who had been having sudden, out-of-nowhere panic attacks for years and had long assumed the episodes were generated by something in their psychology. The researchers compared them to a control group of healthy volunteers with no history of panic.

Both groups were put on an IV. Both groups received a slow infusion of sodium lactate, a compound the body produces and clears every day without incident. Not a drug. Not a sedative or a stimulant. Sodium lactate is the same compound your muscles naturally produce when you sprint as hard as you can. Everyone sat still in a quiet room. No stressor, no task, no conversation.

Thirty-one of the forty-three panic patients had a full panic attack on the table. None of the twenty healthy controls did. The patients reported the lab-induced attacks were indistinguishable from the ones they had been having for years.

A shift in internal chemistry, delivered through a tube, produced the same experience they had spent their lives blaming on their own minds. The body sent a signal. The brain wrote the rest. Some nervous systems are simply tuned to a higher threat sensitivity. The same drip, the same room, the same chemistry, and one person feels nothing while another panics. The body's signals are louder, the brain's interpretation faster, and the leap from sensation to story shorter. If you have always run a little hot that way, this is not a flaw in your character. It's just the setting you came with, but you can always adjust the knob.

How to Audit the Signal Before You Trust the Story

This week, when dread shows up without an obvious reason, do one thing before you believe it. Audit the input.

Pause and run a short physical checklist. How much caffeine, and how recently? How are you breathing, fast and high in the chest, or slow? Is the room loud or stuffy? How did you sleep? When did you last eat? You are checking one thing: whether the body had a physical reason to fire that has nothing to do with threat.

Then relabel what you find. Instead of "I feel anxious, so something must be wrong," try "I am safe. My body is activated, and here is the likely reason." If your breathing is fast, slow the exhale until your head clears. If it is the fourth coffee, name it as the fourth coffee. The aim is to treat the arousal as a body signal you can read, rather than a verdict you have to obey. 

Doing it right feels like checking a gauge. The dread may linger for a minute. But once you know where it came from, it loses much of its authority.

From there, you can go one step further with a practice we teach at The Wise Mind Group called Somatic Tracking. It comes from Pain Reprocessing Therapy, where it has been used to help people unlearn chronic pain, and the same logic works on a somatic spiral. The point is to teach your nervous system that the sensation is safe.

It works like this:

1. Locate the sensation. Where in the body is it? Tight chest, fluttering stomach, tingling hands. Name it without analyzing it.

2. Get Curious. Turn toward it with curiosity instead of fear or intensity. Notice its shape, its edges, whether it moves. Does it have a temperature? What if you had to give it a color? You are not trying to make it go away. You are simply noticing it the way you would clouds passing overhead.

3. Notice what changes. The sensation may soften, move, or fade. It may stay for a moment and then release. What matters is that you stopped feeding it. The body settles when the brain stops treating it as an emergency. 

Your body will always do its job to send signals. The work is not to silence them. It is to stop mistaking every alarm for a fire.

Why do I feel anxious for no reason?

Anxiety can start in the body before any anxious thought shows up. Things like poor sleep, dehydration, low blood sugar, caffeine, high altitude, or a loud environment can raise your heart rate and stress hormones in ways that feel a lot like anxiety. Your brain notices those physical signals and builds a story to explain them, even when nothing is actually wrong. This pattern is sometimes called the somatic spiral. Once you spot the physical cause, the feeling tends to lose much of its grip.

What is the somatic spiral?

The somatic spiral is what happens when physical signals in the body, like a fast heart rate from dehydration or a bad night of sleep, get read by the brain as a sign of danger. The brain then builds an anxious story to match the feeling, even though the original cause had nothing to do with an actual threat. Because the feeling itself is real either way, it can be hard to tell that the anxiety started in the body rather than the mind. Naming this pattern is the first step to interrupting it.

Can anxiety be caused by something physical, like caffeine or dehydration?

Yes. Caffeine blocks the chemical that normally calms your nervous system down, which raises heart rate and alertness in a way that closely resembles anxiety. Dehydration and low blood sugar do something similar, raising cortisol and adrenaline, the same hormones involved in a stress response. Poor sleep adds to this by making the brain's threat detection system more sensitive and less able to reason calmly. Any one of these on its own can produce sensations that feel like anxiety, even when nothing is wrong.

What is somatic tracking?

Somatic tracking is a practice from Pain Reprocessing Therapy that involves turning toward a physical sensation with curiosity instead of fear. Instead of trying to make the sensation go away, you notice where it is in the body, what it feels like, and whether it changes as you pay attention to it. The goal is to teach your nervous system that the sensation is safe, which often allows it to soften or pass on its own. It is a way of responding to bodily signals without turning them into a bigger story.

How do I know if my anxiety is coming from my body instead of my thoughts?

A useful first step is to run through a quick physical checklist before believing the anxious story. Ask how much caffeine you have had and when, how you are breathing, whether the room is loud or stuffy, how you slept, and when you last ate. If one or more of these stands out, there is a good chance your body sent the first signal and your mind built the explanation afterward. Either way, the practice is the same: notice the sensation, name a likely physical cause, and give your body a chance to settle before deciding the anxiety means something is wrong.

Is this a substitute for therapy or treatment for panic attacks?

No. This content is educational and meant to help you understand how anxiety can show up in the body. If you experience panic attacks regularly, or anxiety that is interfering with your life, it is worth talking with a licensed therapist or doctor who can evaluate what is happening and recommend the right care. Understanding the somatic spiral can be a useful starting point, but it does not take the place of professional support.

Beyond the insight.

Knowledge is the first step; integration is the work. If you're ready to move these concepts into your actual life, let's talk about a strategic path forward.

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