Last week, we talked about why your body was not designed to sit all day.
We looked at posture.
Movement.
Breathing.
And the physical strain that can build when your body stays in one position for too long.
But there is another force shaping the way you sit, move, and feel throughout the day.
Stress.
Most people think of stress as something that happens in the mind.
A deadline.
A difficult conversation.
A growing to-do list.
An overflowing inbox.
But stress does not stay in your thoughts.
It changes your body.
It changes your breathing.
It changes your posture.
It changes your muscle tension.
And over time, it can change the way you experience pain.
Your Stress Response Is Designed to Protect You
Your nervous system is constantly gathering information.
Is this environment safe?
Is there a threat?
Do I need to act quickly?
When your brain senses pressure or danger, your body activates what is often called the fight-or-flight response.
Your heart rate may increase.
Your breathing becomes faster and shallower.
Your muscles tighten.
Your jaw may clench.
Your shoulders may rise.
Your attention narrows.
This response is not a flaw.
It is a built-in survival system designed to help you react quickly.
The problem is that modern stress rarely arrives as a single event that passes.
It may continue all day.
Emails.
Meetings.
Traffic.
Financial pressure.
Family responsibilities.
Constant notifications.
Your body may remain partially prepared for danger even when you are simply sitting at your desk.
Stress Changes the Way You Hold Your Body
Think about how your posture changes when you feel overwhelmed.
You may lean toward the screen.
Raise your shoulders.
Tighten your stomach.
Hold your breath.
Press your tongue against your teeth.
Clench your jaw.
Your body becomes smaller and more guarded.
These changes may happen so gradually that you do not notice them.
But your muscles notice.
The muscles around your neck and shoulders begin working harder.
The muscles at the base of your skull remain tense.
Your chest becomes less mobile.
Your jaw muscles stay active.
Your breathing becomes less efficient.
At first, this may feel like ordinary workday tension.
Over time, it may contribute to headaches, neck pain, jaw discomfort, upper-back tightness, fatigue, and difficulty concentrating.
Why Stress Settles in the Neck and Shoulders
The neck and shoulders are common places for stress to appear.
When your nervous system becomes more alert, your body prepares to protect your head and upper body.
Your shoulders may lift.
Your neck muscles tighten.
Your head may move forward.
At the same time, shallow breathing begins recruiting muscles around the neck and upper chest to help pull air in.
Now those muscles are doing several jobs at once.
They are supporting your head.
Helping you breathe.
And responding to stress.
It is not surprising that they begin to feel overworked.
This is why treating neck and shoulder tension without addressing breathing, posture, and stress often provides only temporary relief.
Why Jaw Clenching Happens
Many people clench their jaws without realizing it.
Some do it while concentrating.
Others do it while driving, answering emails, exercising, or sleeping.
Jaw clenching is often part of the body’s bracing response.
Your nervous system senses pressure, and your muscles prepare to act.
The jaw tightens.
The tongue presses.
The muscles around the temples and face become active.
You may notice:
• Jaw soreness
• Facial tension
• Headaches
• Tooth sensitivity
• Clicking or tightness near the jaw joint
• Tension extending into the neck and shoulders
The first step is awareness.
Notice whether your teeth are touching when you are not eating.
At rest, your lips can be gently together or slightly apart while your teeth remain separated.
Your jaw does not need to stay clenched to help you concentrate.
Stress Changes Your Breathing
When you are calm, your breathing can move through the diaphragm and lower rib cage.
Your abdomen gently expands.
Your ribs widen.
Your exhale is relaxed.
Under stress, breathing often shifts upward.
The chest rises.
The shoulders move.
The breath becomes shorter.
You may even hold your breath while reading an email or focusing on a difficult task.
This pattern is sometimes called screen apnea or email apnea.
You may not stop breathing completely.
Instead, you unconsciously interrupt or restrict your breathing while concentrating.
That matters because your breathing pattern sends information back to your nervous system.
Fast, shallow breathing can reinforce a sense of urgency.
Slow, relaxed breathing can help signal that the immediate threat has passed.
Why Poor Breathing Increases Fatigue
Breathing should be automatic.
But when the muscles of the neck, shoulders, and upper chest begin doing too much of the work, breathing becomes less efficient.
Those muscles fatigue.
Your rib cage moves less freely.
You may feel tight, restless, or mentally drained.
Shallow breathing can also make it harder to fully relax between stressful moments.
One meeting ends.
Another begins.
One problem is solved.
Another appears.
Without a physical reset, your body may carry the tension from one part of the day into the next.
By the evening, you may feel exhausted even though you spent most of the day sitting.
When Muscle Tension Becomes Pain
Muscles are designed to contract and relax.
Stress can interfere with the second part.
When muscles remain partially contracted for long periods, they may become tender, stiff, and sensitive.
You may develop areas that feel like knots.
Movement may become uncomfortable.
Your body may begin protecting the painful area by tightening even more.
This creates a cycle:
Stress creates tension.
Tension changes movement.
Restricted movement increases discomfort.
Discomfort creates more stress.
Pain is rarely caused by one factor alone.
But chronic stress can make the nervous system more sensitive and reduce your ability to recover from the physical demands of the day.
That does not mean the pain is “all in your head.”
It means the brain, nervous system, muscles, joints, and emotions are working together.
The Mind and Body Are Not Separate
We often talk about physical health and mental health as though they belong to different systems.
They do not.
Your thoughts affect your breathing.
Your breathing affects your nervous system.
Your nervous system affects your muscle tension.
Your muscle tension affects your movement.
Your movement affects how you feel.
This is the mind-body connection.
It is not vague or imaginary.
It is happening in your body throughout the day.
The good news is that this connection works in both directions.
Stress can change your breathing.
But changing your breathing can also influence your stress response.
Your 60-Second Nervous System Reset
You do not need a quiet room, special equipment, or a 30-minute meditation session.
You can begin with one minute.
Use this reset before a meeting, after a stressful phone call, while sitting in your car, or whenever you notice your shoulders rising and your breath becoming shallow.
Step One: Relax Your Jaw
Place your tongue gently on the roof of your mouth, just behind your front teeth.
Allow your lips to remain slightly apart.
Keep your teeth separated.
Let your jaw soften.
Step Two: Inhale Slowly Through Your Nose
Place one hand on your chest and the other over your abdomen.
Inhale slowly through your nose.
Try to keep the upper hand relatively still.
Allow your abdomen and lower ribs to expand beneath the lower hand.
Step Three: Exhale Longer Than You Inhale
Exhale slowly and comfortably.
Do not force the air out.
Allow your shoulders to soften as you breathe out.
A slightly longer exhale can help your body shift away from urgency.
Step Four: Repeat
Take four or five slow breaths.
That is all.
You are not trying to eliminate every stressful thought.
You are giving your nervous system a different signal.
What Is the Vagus Nerve?
The vagus nerve is one of the major communication pathways between the brain and the body.
It plays an important role in the parasympathetic nervous system—the part of your nervous system associated with rest, digestion, recovery, and regulation.
You do not need to “hack” your vagus nerve.
You do not need expensive equipment.
Simple practices that support a calmer physiological state may include:
• Slow breathing
• Longer, relaxed exhales
• Gentle movement
• Humming or singing
• Spending time outside
• Meaningful social connection
• Adequate sleep
• Taking real breaks from work
These practices do not remove the source of stress.
They help your body recover more effectively between stressful moments.
Nervous System Regulation Does Not Mean Staying Calm All the Time
Regulation does not mean never feeling stressed.
That would not be realistic.
A healthy nervous system can respond when needed and then return toward a more settled state.
You become alert for the presentation.
Focused for the deadline.
Protective during a difficult moment.
Then your body gradually lets go.
The problem is not that your stress response turns on.
The problem is when it rarely turns off.
Nervous system regulation is the ability to move between states rather than remaining stuck in one.
Burnout Often Begins Before You Recognize It
Burnout is not simply being tired after a busy week.
It may build slowly.
You may notice:
• Irritability
• Difficulty concentrating
• Feeling emotionally detached
• Trouble sleeping
• Frequent headaches
• Persistent muscle tension
• Reduced motivation
• Feeling exhausted even after resting
By the time someone says, “I am burned out,” the body may have been sending signals for months.
The answer is not always to become more efficient or push harder.
Sometimes the most productive response is to create small moments of recovery before your body forces you to stop.
Build Recovery Into the Workday
You do not have to wait until the end of the day to relax.
Small resets can be built into your normal routine.
Take three slow breaths before opening your email.
Relax your jaw while driving.
Lower your shoulders before answering the phone.
Walk outside for five minutes after lunch.
Look away from your screen between tasks.
Pause before moving directly from one meeting into the next.
These moments may seem too small to matter.
But your nervous system responds to repetition.
A one-minute reset practiced several times a day may be more useful than waiting for the perfect opportunity to completely unwind.
One Thing You Can Do Today
Choose one moment that usually feels rushed.
Before your first meeting.
When you get into your car.
Before you answer a difficult email.
At the end of your workday.
Stop for 60 seconds.
Place your tongue on the roof of your mouth.
Allow your lips to separate slightly.
Inhale slowly through your nose.
Let your abdomen expand.
Exhale gently and completely.
Then notice:
Did your shoulders lower?
Did your jaw soften?
Did your thoughts slow down, even slightly?
You may not be able to control everything happening around you.
But you can change the signal your body is receiving.
Small Changes. Big Impact.
Stress is not only something you think about.
It is something your body experiences.
It lives in your breath.
Your shoulders.
Your jaw.
Your posture.
Your muscles.
Learning to regulate your nervous system does not eliminate the demands of work or life.
It helps you meet those demands without carrying every stressful moment in your body.
Because your ability to perform depends on more than how hard you work.
It also depends on how well you recover.
Next week, we’ll bring everything together and explore what can happen when wellness becomes part of the workday.
Take the Reset With You
I’ve attached a downloadable 60-Second Nervous System Reset guide so you can save it, print it, or keep it nearby as a simple reminder during your workday.
Use it before a meeting, after a stressful conversation, or anytime you notice your jaw tightening, your shoulders rising, or your breathing becoming shallow.
Take a moment to practice the reset—and reflect on what changes in your body when you slow down.
Download the 60-Second Nervous System Reset guide below.
About TULA Mobile Chiropractic
TULA Mobile Chiropractic brings personalized chiropractic and wellness services directly to your home or office throughout Broward County.
Services include:
✓ Chiropractic Care
✓ Therapeutic Massage
✓ Trigger Point Dry Needling
✓ Shockwave Therapy
✓ Myofascial Cupping
✓ Rehabilitation & Corrective Exercise
✓ Personal Injury Care
Looking to support your entire team?
Together with Koi Wellness Solutions, we also provide customized workplace wellness programs including ergonomic assessments, posture education, chair massage, stress-management workshops, movement education, and employee wellness experiences.
Nancy Gomez
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