top of page

Learn the Signs of a Brain Injury

Sep 25, 2025
4 min read

Dr. Keelin Regan-Reed, PT, DPT, is often referred to as the "Nerve Whisperer" by her clients and has been called a "Human MRI" by her peers. She is an Orthopedic and Neural Manual Physical Therapist specializing in Neural Manipulation and the published author of Fix It Yourself! A Self-Help Guide To Treating Common Muscular Aches And Pains.

Executive Contributor Dr. Keelin Regan-Reed PT, DPT

Your brain holds the contents of the central nervous system and is protected by your cranium. It is by far the most complex of all human organs. Your brain is 60% fat and 40% water, making it the fattiest organ. It uses 20% of our total body blood circulation, possesses over 100 billion neurons, and can produce up to 38 watts of electrical current an hour. It can be said that the brain is the main electrical generator of the human body.


Transparent silhouette of person with highlighted red brain, holding head, set against a blue background, conveying pain or stress.

 

Have you experienced a head injury or concussion and not known it?


Your brain processes and cleans itself during sleep. It detoxifies, builds new brain cells, and flushes nutrients and blood flow. This very important homeostasis and balancing act is what helps regulate and support the rest of our body and organs. When an injury occurs to our brain, the basic functions are disrupted and can be seriously damaged. The question is, what defines an injury or trauma to the brain? We used to think losing consciousness was the most important factor in determining a concussion or TBI (traumatic brain injury). This is not the case.


The definition of a concussion is a temporary disturbance in brain function caused by a blow, jolt, single velocity impact, or repeated impacts to the head. Brain bruising, bleeding, and fluid swelling are what result and create damage to the brain. When certain areas of the brain are impacted, it can result in decreased blood supply or increased blood and fluid swelling, which creates pressure changes in the cranium (skull).


Headaches are the number one sign of pressure changes in the cranium. Confusion, fogginess, nausea, memory changes, vomiting, and behavior changes are all signs of pressure dysfunction in the brain. Chronic dysfunction, if not treated, can lead to long-term behavioral changes, learning disabilities, migraines, tinnitus, memory issues, and even problems with the health of our GI system and organs.


Whiplash injuries can have massive implications on the vagus and vascular systems. Many of us think that if we didn’t impact or hit our head, then a brain injury or concussion did not happen. I can’t emphasize enough that this is just not true. Having your neck thrashed around front to back or side to side can cause your brain to bounce off the cranial wall and sustain some level of bruising. It will also impact your cervical spine, muscles of the neck, vagus and cranial nerves, and vascular blood supply. This can all affect how your brain receives healthy circulation and pressure regulation.


Typical incidents that can cause head injuries that go unnoticed


  1. Trampoline injuries or wipeouts to the neck or head

  2. Bike or skateboard falls

  3. Ski injuries involving speed and falls (impact to the head is not required)

  4. Inner ear, sinus, or meningeal brain infections caused by viral, bacterial, or fungal sources

  5. Car accidents involving whiplash, either front to back or side to side

  6. Falling off a horse or object

  7. Running into someone, or someone running into you, suddenly

  8. Being hit by an object (ball, stick, person, etc.)

  9. Getting hit in the face by an object or person

  10. Any incident involving high velocity with a sudden stop


Signs you might have had a brain injury that has gone untreated


  1. Headaches

  2. Ability to focus and concentrate

  3. Anxiety or depression

  4. Changes in mood (personality changes, flat affect, or reduced emotional responses to friends and family)

  5. Sleep disturbances

  6. Tinnitus

  7. Memory loss

  8. Auditory comprehension difficulties

  9. Fogginess or lightheadedness

  10. Sensitivity to light, sound, touch, or taste

  11. Balance, performance, and coordination challenges

  12. Ear or eye pain

  13. Mouth or teeth pain

  14. Nausea or loss of appetite


Protection


Our brains are so precious that we must do everything in our power to protect, care for, and develop them. Good brain health depends on good general health maintenance. This includes a healthy lifestyle, adequate sleep, good eating habits, and regular physical activity. If you or someone you know has experienced a head injury, seek care and treatment options.


Why neural manipulation?


The Manual Neural Manipulation technique can be profoundly effective in treating brain and neck injuries. Find a manual therapist who specializes in neural and cranial work to help improve the function of your brain. We have only been given one brain, and there is no return policy.


Neural Manipulation is supportive of our nervous system, having a tremendous impact on healing. Read 5 Incredible Health Improvements Through Nerve Manipulation Technique to learn more.


Follow me on Facebook, Instagram, LinkedIn, and visit my website for more info!

Read more from Dr. Keelin Regan-Reed

Dr. Keelin Regan-Reed, PT, DPT, Orthopedic and Neural Manual Physical Therapist

Dr. Keelin Regan-Reed, PT, DPT, is a licensed manual Doctor of Physical Therapy specializing in Neural Manipulation. She is able to "listen" to the cranial rhythm in the brain and body by following the cerebral spinal fluid flow as it works around the brain and spinal cord to the peripheral nerves throughout the body. Just like a clinician can "feel" for the pulse in your wrist to listen to your blood flow and heartbeat, the fluid of the brain and nerves has a similar "feel" of pressure changes. Our bodies hug around lesions and restrictions, thus changing the rhythm of the fluid. Dr. Keelin can detect this change and follow where the lesion is and make the necessary corrections and/or releases so the body can then heal on its own.

This article is published in collaboration with Brainz Magazine’s network of global experts, carefully selected to share real, valuable insights.

Article Image

Why Are Women So Exhausted? The Hidden Mental Load of Being Everything to Everyone

You can have a full night’s sleep and still wake up exhausted. Not because you didn’t sleep. Because your brain never really clocked out. You’re thinking about the meeting at 10, the groceries you...

Article Image

Breast Cancer and the Nurturer’s Paradox and When Being Needed Becomes an Identity

October is Breast Cancer Awareness Month, and much of the conversation quite rightly centres on screening, diagnosis, treatment and survival. I want to take the conversation somewhere less commonly...

Article Image

Acupuncture for Car Accident Injuries, an Important Non-Surgical Treatment

Motor vehicle collisions often leave people with more than bruises. Even when scans show no fracture that needs surgery, many patients develop whiplash-associated disorder (WAD), neck and low-back...

Article Image

3 Lessons From My 60-Year-Old Client That Many Fitness Programmes Ignore

In a recent session with one of my clients, she told me her smart scale showed that, since we began training together, she’s lost 3lb of fat but gained 4lb of muscle. For someone in her 60s, this is...

Article Image

5 Essential Steps for Leadership Growth

Leadership isn't simply a title you are given. Leadership is something you grow into, develop, and intentionally choose every day. Whether you're stepping into your first leadership role, leading a team, building...

Article Image

Why Leadership Decisions Can End Before the Pressure Does

There were decisions I made during my years in senior leadership that were finished long before I stopped carrying them. The meeting was over. The decision had been communicated. Everyone had gone back...

Why Are Women So Exhausted? The Hidden Mental Load of Being Everything to Everyone

Breast Cancer and the Nurturer’s Paradox and When Being Needed Becomes an Identity

Acupuncture for Car Accident Injuries, an Important Non-Surgical Treatment

3 Lessons From My 60-Year-Old Client That Many Fitness Programmes Ignore

5 Essential Steps for Leadership Growth

Why Leadership Decisions Can End Before the Pressure Does

How to Own the Room Before You Say a Single Word

How Your Lymphatic System Keeps You Radiant and Full of Life

Fear of Emotions and What if Feeling Was Never the Problem?

bottom of page