By Dr. Nathalie Beauchamp, B.Sc., D.C., IFMCP | Founder, Santé Chiropractic and Wellness Centre, Ottawa
Quick answer: Yes, poor posture can contribute to fatigue. When your head and shoulders shift forward, the muscles supporting your neck and upper body may have to work harder. Posture can also influence breathing mechanics and contribute to muscle tension and headaches. These factors may leave you feeling more tired as the day goes on.
Do you find yourself feeling tired long before the day is over?
Maybe you wake up feeling rested, but by mid-afternoon your energy has dropped. You reach for another coffee, blame a busy schedule, or assume you’re just getting older.
Can poor posture cause fatigue? It can contribute. Posture can influence how hard certain muscles work, how comfortably you breathe and how much tension builds through your neck and shoulders during the day.
Most people associate poor posture with neck or back pain. While those are common concerns, posture can also influence muscle tension, breathing mechanics, headaches and how much effort your body uses during everyday activities.
At Santé Chiropractic and Wellness Centre, we often tell patients that posture isn’t simply about how you look. It’s also about how efficiently your body moves and functions.
Why Posture Matters More Than You Think
Your body is designed to stand upright with your head balanced over your shoulders. Unfortunately, many of the positions we spend our days in make that harder.
Hours spent looking down at phones, working on laptops, driving or sitting at a desk can gradually encourage the head and shoulders to shift forward.
This seemingly small change can affect how your muscles work.
An adult head weighs approximately 10 to 12 pounds. As the head moves forward from its neutral position, the muscles of the neck, shoulders and upper back must work harder to support it.
Think about holding a bowling ball close to your chest compared with holding it out in front of you. The ball hasn’t become heavier, but the effort required to support it has increased.
Your head and neck work on a similar mechanical principle.
Poor Posture Can Make Your Muscles Work Harder
When your body spends long periods in less-than-ideal positions, certain muscles may have to work harder while others become less active.
You may notice:
- Ongoing tension through the neck and shoulders
- Tightness through the chest or hips
- Increased strain through the upper or lower back
- Reduced endurance in postural muscles
- Discomfort after prolonged sitting or screen use
Over time, these patterns can make everyday movement feel more demanding.
This is one reason posture may contribute to fatigue. If muscles are continually working to support positions they aren’t well suited to maintain, your body may be using more effort than necessary throughout the day.
That doesn’t mean posture is the cause of every afternoon energy crash, but it may be one piece of the puzzle.
The Connection Between Posture and Your Nervous System
Your spine does much more than support your body. It also protects the spinal cord, an essential part of the nervous system that carries information between the brain and the rest of the body.
Your brain constantly receives information from your joints, muscles and other sensory receptors to understand where your body is in space. This process is called proprioception.
Proprioceptive information helps your brain coordinate posture, balance and movement, often without you consciously thinking about it.
Changes in posture and movement can alter the sensory information your brain receives from muscles and joints. At the same time, your body may adapt through changes in muscle activity and movement patterns.
At Santé, we look at posture as part of this larger picture. Our goal is to assess how the spine and surrounding muscles are moving and functioning, rather than focusing only on whether someone appears to be “standing up straight.”
Poor Posture Can Affect Your Breathing
Here’s something many people don’t immediately connect with posture: how you breathe.
Try slouching forward and taking a deep breath. Then sit tall, allow your chest and rib cage to expand naturally, and try again.
You may notice a difference.
When the shoulders round forward and the upper body remains flexed for long periods, the position of the rib cage can change and breathing mechanics may become less efficient. Some people may also rely more heavily on muscles in the neck and upper chest to assist with breathing.
This can contribute to:
- Neck and shoulder tension
- Shallower breathing patterns
- A feeling of increased effort when breathing
- Reduced comfort or endurance during activity
Posture isn’t the only factor that affects breathing, of course. But giving the rib cage and diaphragm room to move normally can support more comfortable breathing mechanics.
Can Poor Posture Cause Headaches?
Poor posture can contribute to certain types of headaches, particularly when it is accompanied by neck tension.
Forward head posture can increase mechanical strain on the muscles and joints of the neck, including the muscles around the base of the skull.
For some people, prolonged muscle tension and neck discomfort may contribute to tension-type or neck-related headaches.
If your headaches tend to appear after long hours at a computer, prolonged sitting or looking down at your phone, it’s worth paying attention to whether neck tension and posture seem to be part of the pattern.
Recurring, severe or unexplained headaches should always be appropriately assessed rather than assumed to be caused by posture.
Your Body Is Designed for Efficient Movement
One of the principles we emphasize at Santé Chiropractic is efficiency.
When your body moves well:
- Muscles can share the workload more effectively
- Joints can move through comfortable ranges
- Breathing mechanics may feel easier
- Everyday movement can require less unnecessary effort
Think of a car with properly aligned wheels. When everything is working together, the vehicle moves more efficiently and unnecessary strain is reduced.
Your body isn’t a car, of course, but the analogy helps illustrate an important point: how the different parts of your body work together matters.
Posture isn’t about maintaining one “perfect” position all day. In fact, no one should be expected to sit or stand perfectly still for hours. Movement and regularly changing positions are important too.
The goal is to help your body move well and avoid spending excessive amounts of time in positions that repeatedly create strain.
How We Assess More Than Just Posture at Santé Chiropractic
At Santé Chiropractic and Wellness Centre, we don’t simply look at someone’s posture and make assumptions about what is happening underneath.
Our assessments can include Insight™ neuroTECH, a series of non-invasive computerized scans that provide additional information about physiological patterns such as muscle activity and autonomic nervous system function.
Depending on the assessment, these scans may include:
Heart Rate Variability (HRV): HRV measures variations in the time between heartbeats and is one tool used to assess autonomic nervous system activity and adaptability.
Surface Electromyography (sEMG): sEMG measures electrical activity produced by muscles. Along the spine, it can help us observe patterns of muscle activity and identify areas where muscles may be working differently from one side or region to another.
Thermography: This technology measures skin temperature patterns. These patterns can provide additional information that is considered alongside the rest of the clinical assessment.
These tools don’t diagnose the cause of fatigue on their own. Instead, they provide objective measurements that can be considered together with your health history, symptoms, posture, movement and physical assessment.
They can also give us measurements to compare over time rather than relying only on how someone feels on a particular day.
Simple Ways to Support Better Posture and Energy
Improving posture doesn’t mean forcing yourself to sit perfectly straight all day. Small changes that encourage more movement and reduce prolonged strain are often a better place to start.
Try:
- Move regularly. Get up, walk or change position every 30 to 45 minutes when possible.
- Adjust your workstation. Position your screen so you aren’t constantly looking down.
- Bring your phone to you. Hold it higher rather than repeatedly dropping your head toward your screen.
- Build strength gradually. Strengthening the upper back, core and other postural muscles can help support comfortable movement.
- Work on mobility. If your chest or hips feel tight after sitting, gentle mobility work may help.
- Pay attention to your breathing. Practice comfortable diaphragmatic breathing rather than relying primarily on the upper chest and neck.
- Notice patterns. If tension, headaches or fatigue consistently worsen as the day progresses, note what you were doing and how long you had been in one position.
And remember: your best posture is often your next posture. The human body is designed to move, not remain locked into one position all day.
When Fatigue May Be More Than a Posture Issue
Fatigue is common, and posture is only one of many factors that may contribute to it.
Sleep quality, stress, nutrition, medications, physical activity and underlying health conditions can all affect energy levels.
If your fatigue is persistent, unexplained, getting worse or significantly interfering with your daily life, it’s important to discuss it with an appropriate healthcare provider. New or concerning symptoms shouldn’t be attributed to posture without proper evaluation.
A posture or chiropractic assessment may help identify mechanical factors that could be contributing to how you feel, but it isn’t a substitute for investigating other potential causes of ongoing fatigue.
The Bottom Line: Can Poor Posture Cause Fatigue?
Poor posture can contribute to fatigue, particularly when it leads to increased muscle effort, tension or less efficient breathing mechanics.
Forward head posture and prolonged sitting may make the muscles of your neck, shoulders and upper back work harder throughout the day. For some people, that extra effort is accompanied by neck tension, headaches or a feeling of being worn out by the afternoon.
But fatigue is rarely something we should explain with a single factor.
At Santé Chiropractic and Wellness Centre, we look at posture as one part of the bigger picture: how your spine moves, how your muscles are functioning, what your daily habits look like and what may be contributing to the symptoms you’re experiencing.
If you’re in east-end of Ottawa or Orléans and experiencing recurring neck tension, headaches or postural concerns, a chiropractic assessment can help determine whether mechanical factors may be contributing and what steps may be appropriate for you.
Schedule an assessment today.
Frequently Asked Questions
Can poor posture really cause fatigue?
Poor posture can contribute to fatigue. When certain muscles have to work harder for prolonged periods to support your head and upper body, that increased muscular effort may leave you feeling more tired. Posture can also affect breathing mechanics and contribute to muscle tension. Fatigue has many possible causes, however, so persistent or unexplained tiredness deserves appropriate evaluation.
Can bad posture cause headaches?
Poor posture may contribute to some headaches. Forward head posture and prolonged sitting can increase tension through the neck and muscles around the base of the skull. This may contribute to tension-type or neck-related headaches in some people.
How do I know if my posture is affecting my energy?
Look for patterns. For example, do you become increasingly tired or uncomfortable after several hours at a computer? Does neck or shoulder tension build as the day progresses? Do you feel better after getting up and moving?
Those patterns don’t prove posture is causing your fatigue, but they can provide useful information during an assessment.
Can improving my posture increase my energy levels?
It may help if muscle tension, prolonged positioning or inefficient movement is contributing to how tired you feel. Rather than trying to maintain a “perfect” posture, focus on regular movement, comfortable alignment, appropriate strength and reducing long periods in the same position.
What causes forward head posture?
Long periods spent looking down at phones or laptops, prolonged sitting and certain work or driving positions can encourage the head to sit farther forward. Muscle strength, mobility, habits and individual anatomy may also influence posture.