There are many reasons someone might feel unable to take a deep breath.
1. Dysfunctional Breathing Patterns
Many people develop breathing habits that rely too heavily on the neck and upper chest muscles rather than the diaphragm.
Over time this can lead to:
- Shallow breathing
- Overuse of accessory muscles (some neck muscles and a muscle in the chest)
- Difficulty coordinating breathing during movement
Learn more about this condition in our guide to Breathing Pattern Disorder.
2. Persistent Pain and the Nervous System
Breathing is one of the most direct ways the nervous system receives information about safety or threat.
When breathing becomes shallow, rapid, held, or overly effortful, it can reinforce a state of vigilance in the body. This doesn’t cause persistent pain but it can maintain it by keeping the nervous system in a heightened state.
Diaphragmatic (belly) breathing, on the other hand, helps signal safety. Ideal breathing isn’t about taking big breaths or forcing relaxation, it’s about allowing breathing to be adaptable, efficient, and responsive to the moment.
Read more about how pain and the nervous system affect each other.
3. Stress and the Nervous System
Breathing is one of the most direct ways the nervous system receives information about safety or threat. When breathing becomes shallow, rapid, held, or overly effortful, it can reinforce a state of stress in the body.
During periods of stress or anxiety, breathing often becomes:
- Faster
- Shallower
- More chest-dominant
This can create a cycle where breathing feels increasingly uncomfortable, as our body becomes more stressed it further impacts our breathing. This negative cycle can compound over time.
Read our article about stress, the nervous system and breathing.
4. Rib Cage Stiffness
The rib cage needs to move freely in order for the lungs to expand comfortably.
When the rib cage becomes stiff due to posture, muscle tension, or reduced mobility, it may feel harder to take a deep breath.
Learn what manual therapy (hands-on therapy) we do that can help with this.
5. Muscle Overuse in the Neck and Chest
When breathing relies too heavily on the secondary breathing muscles like the scalenes, pec minor or upper trapezius (neck and front shoulder muscles), it can lead to:
- Neck tightness
- Shoulder tension
- Headaches
Improving breathing mechanics can sometimes reduce this strain and decrease chronic neck and shoulder pain, as well as headaches.