Post-concussion fatigue is one of the most common and frustrating symptoms people experience after a head injury. Even long after the initial event, simple daily tasks can feel draining and recovery can be slower than expected. While rest is important, it is not always enough to support a full recovery.
This article explains what post-concussion fatigue is, why it happens and what you can do to manage it more effectively.
What is post-concussion fatigue?
Fatigue following a concussion is not the same as feeling tired after a long day. It is a type of mental and physical exhaustion that can affect concentration, memory, motivation and energy levels, even after minimal activity.
People often describe it as “hitting a wall” during everyday tasks. Something as simple as reading, holding a conversation or watching television can trigger overwhelming tiredness or brain fog. This type of fatigue is your brain’s way of signalling that it needs more time and support to recover.
What causes this lingering fatigue?
Several factors may contribute to ongoing fatigue after concussion:
Autonomic nervous system disruption
Concussion can affect the part of the brain responsible for regulating basic functions like heart rate and blood pressure. When this system is out of balance, the body may struggle to manage energy efficiently.
Reduced blood flow and glucose delivery
After a concussion, the brain may not receive the oxygen and fuel it needs. This can make even low-effort tasks feel difficult.
Neuroinflammation
Inflammation in the brain may continue for weeks following injury. This increases the brain’s workload and can leave you feeling constantly drained.
Sleep disruption
Many people with concussion report poor sleep, difficulty falling asleep or feeling unrefreshed. This can slow recovery and worsen daytime fatigue.
Cognitive load
The brain often needs to work harder to perform tasks that used to be easy, which increases the sense of mental exhaustion.
When should I be concerned?
Fatigue is normal in the first few weeks after a concussion. However, it may need further investigation if it:
- Persists beyond four to six weeks
- Does not improve with rest
- Is associated with other symptoms like dizziness or light sensitivity
- Interferes with work, study or daily responsibilities
If this sounds familiar, it may be time to seek professional support.
What can help with recovery?
Effective management of post-concussion fatigue often includes more than just rest. A tailored plan that supports the brain and body through active rehabilitation may help improve energy and function.
At the North Coast Head, Neck and Jaw Centre, treatment may include:
Gentle exercise guidance
Graded movement programs can help retrain the nervous system and improve energy regulation over time.
Osteopathic treatment
Depending on your presentation, manual techniques to the neck, jaw or upper back may help reduce strain and improve circulation.
Neck and posture assessment
Many people experience neck-related issues after concussion, particularly if whiplash was involved. Addressing these may help reduce fatigue and improve focus.
Sleep and stress management
Practical strategies for sleep hygiene, stress reduction and sensory overload can support your recovery between sessions.
Education and pacing
Understanding how to balance activity and rest is key. We help you plan your day to avoid pushing too hard and triggering symptoms.
Supporting the Northern Rivers community
Post-concussion care is an area we are passionate about. We are proud to support our local community by offering educational talks and resources to local sporting clubs, coaches and parents to raise awareness of concussion and improve long-term outcomes.
If you are part of a local team or organisation and would like us to speak with your group, please get in touch to see how we can help.
You are not alone
Ongoing fatigue after concussion can be confusing and frustrating, but you do not have to manage it alone. With the right support and an individualised approach, your recovery can move forward.
If you would like to discuss whether osteopathic care may be able to support your recovery, get in touch today or learn more about concussion care at our clinic.