You’re exhausted, but you can’t settle down. You feel on edge all the time. You can’t think straight. You have no patience left for anyone, and you hate how short you’ve been with the people you love.
You’ve tried everything you can think of, and you’re still running on empty and still wound up.
There’s a phrase for that feeling: exhausted but wired. If that’s you, how you breathe, day and night, may be part of the story.
“Exhausted but Wired”
That’s exactly how one of my patients described herself.
She was mouth breathing day and night. Her anxiety had been getting worse, and she was foggy and drained.
She’d already done a lot of the right things. She had a sleep evaluation, and it showed mild sleep apnea. It wasn’t enough to call for CPAP, so she was left to figure out the rest on her own. She tried supplements, hormone replacement therapy, exercising more, drinking more water, and spending more hours in bed.
She was also seeing her doctor for her anxiety and taking medication for it. That care mattered, and it stayed in place the whole time we worked together.
Even with all that effort, she still felt wired and worn out. I’ll share what changed for her in a bit.
How Your Breathing Talks to Your Nervous System
Your nervous system has two main modes.
Fight-or-flight is your alarm system. Your heart speeds up, your muscles tense, and your brain scans for danger. It’s useful in an emergency, but you’re not meant to live there.
Rest-and-digest is the calm side. It’s where your body recovers, digests, repairs, and gets the deep sleep that clears your head.
Here’s what I wish more people knew: the way you breathe is one of the signals that tells your body which mode to be in.
Fast, shallow breathing from your upper chest is how you breathe when you’re stressed. When it becomes your everyday pattern, it can keep sending your body a low-level “something’s wrong” message, even when nothing is.
Slow, calm breathing through your nose sends the opposite message. It helps shift your body toward rest-and-digest. Slowing your breathing down is one of the few levers you can pull to calm your nervous system on purpose.
What Happens at Night
Breathing matters even more while you sleep.
When your airway narrows during the night, your brain has to work to keep air moving. It pulls you out of deeper sleep, sometimes over and over, and each time it can set off a small stress response. You don’t remember any of it. You just wake up tired, and your body may have spent the night on alert. (I go deeper on this in Fragmented Sleep: Why “Enough Hours” Doesn’t Mean Restful Sleep.)
Poor sleep makes it harder to manage emotions and focus the next day. Anxiety makes it harder to fall asleep and stay asleep. It’s easy to see how these two can feed each other.
Research has found that anxiety and depression symptoms are more common in people with sleep apnea, and the National Heart, Lung, and Blood Institute lists anxiety as one of the symptoms women with sleep apnea may report.
That doesn’t mean your anxiety is “just” a breathing problem. Anxiety is real and can have many causes. Breathing can be one piece worth looking at alongside everything else.
What I Notice in Anxious, Foggy Patients
When someone tells me they’re on edge, can’t think straight, and have no patience, I pay close attention to how they breathe and how they hold their mouth. The patterns I see most:
Shallow chest breathing. Their shoulders and upper chest move with each breath instead of their belly.
Frequent sighing. Lots of big, heavy sighs throughout the conversation.
Mouth breathing. Their lips are apart at rest, and they breathe through their mouth during the day.
Oral rest posture. Their tongue sits low in the mouth instead of resting against the roof of it.
Facial structure. Certain facial and jaw features can be linked to a narrower airway.
None of these diagnoses anything. Together, they tell me breathing is part of the picture.
How We Slow Things Down
With my patient, our work was about slowing her down. That meant:
Specific breathing exercises to move her away from fast, shallow chest breathing
Practicing nasal breathing during the day until it started to feel natural
Figuring out why nasal breathing was hard for her, instead of just telling her to “breathe through your nose”
Relaxation techniques before bed to help her body shift into rest mode
Retraining her oral rest posture, with her lips gently together and her tongue resting on the roof of her mouth
Over time, she noticed a real difference. Her brain fog lifted. She had enough energy to get through the day. She felt calmer.
As her anxiety improved, her doctor decided to lower her medication. That decision was made by her physician, based on how she was doing. Please don’t change or stop any medication on your own. Talk with your doctor first.
Everyone is different, and I can’t promise the same results for anyone. Her story shows that breathing was a piece of her puzzle that hadn’t been addressed yet.
Where Myofunctional Therapy Fits
Myofunctional therapy retrains the muscles and habits of your mouth and face. In my practice, therapy focuses on four goals:
Nasal breathing
Correct mouth posture, with lips resting gently together
Proper tongue posture, with the tongue resting against the roof of the mouth
A correct, normalized swallow
It works alongside your medical and mental health care, never in place of it. I’m not a physician or a mental health professional, and I don’t diagnose sleep disorders or anxiety. Sleep concerns should be evaluated by a physician or sleep specialist, and anxiety should be evaluated by your physician or a mental health professional. I work alongside them.
Frequently Asked Questions
Can sleep apnea cause anxiety?
Sleep apnea and anxiety are linked, and anxiety symptoms are more common in people with sleep apnea. Disrupted sleep and nighttime stress responses can play a role, but anxiety has many possible causes. Talk with your physician or a mental health professional about what’s going on for you.
Should I stop my anxiety medication if I think breathing is involved?
No. Keep your current care in place and talk with your doctor before making any changes. Breathing work can happen alongside your treatment.
Can mouth breathing make anxiety worse?
Mouth breathing can go along with faster, shallower breathing from the chest, which matches your body’s stress pattern. Slow nasal breathing is calmer. If you mouth breathe and feel on edge, it’s worth looking at how you breathe.
Does breathing really affect your nervous system?
Yes. Slow, deep breathing, like belly (diaphragmatic) breathing, can help you relax and is used to help with stress and anxiety. It works best as one part of your overall care.
You Don’t Have to Stay Wired
If you’re exhausted but wired, on edge, foggy, and out of patience, and you’ve already tried everything on the list, let’s talk.
In your free 30-minute assessment, we’ll go through your history together, check for a tongue tie, and see whether myofunctional therapy is a good fit for you. If other professionals, like a physician, sleep specialist, mental health professional, ENT, dentist, etc., should be part of your care, we’ll talk about that too.
Book your free 30-minute assessment here.

