Every Concussion Is Also a Neck Injury The forces that cause concussion simultaneously injure the cervical spine. Your head weighs 10-12 pounds and sits on the narrow cervical spine. When your head accelerates rapidly during impact, your brain moves inside the skull (concussion) and your cervical structures stretch beyond their normal range (whiplash). These are two injuries from one mechanism, and both produce symptoms (Kennedy et al., 2017). The cervical spine is often the overlooked half of the concussion equation. Standard concussion protocols focus on brain rest, graduated return to activity, and symptom monitoring. The neck injury receives minimal attention, despite producing symptoms identical to the brain injury. This gap in treatment explains why many concussion patients plateau in recovery despite following their protocol correctly. Up to 75% of patients with persistent post-concussion symptoms have identifiable cervical spine dysfunction (Kennedy et al., 2017). Cervical dysfunction produces headache, dizziness, brain fog, nausea, and visual disturbance through mechanisms completely separate from brain injury. Treating the neck treats symptoms the brain protocol cannot reach. How Cervical Dysfunction Produces "Concussion" Symptoms Cervicogenic headache. The upper three cervical segments (C1-C3) share a neurological relay station with the trigeminal nerve, which supplies sensation to your face and head. Dysfunction at these segments sends pain signals through the trigeminocervical nucleus, producing headache patterns indistinguishable from concussion headache. Pain at the base of the skull, behind the eyes, across the forehead, or throughout the entire head. Without cervical assessment, this headache is attributed entirely to the brain injury. Cervicogenic dizziness. Your cervical spine contains the highest density of proprioceptive receptors in your body. These receptors tell your brain exactly where your head is in space. Whiplash injury disrupts these receptors, sending inaccurate position signals that create dizziness, unsteadiness, and spatial disorientation. This dizziness improves with cervical treatment, unlike vestibular dizziness from brain injury (Treleaven, 2017). Cognitive fog from cervical dysfunction. When cervical proprioception is impaired, your brain diverts processing resources to maintain head position and balance. These resources get pulled from cognitive tasks like concentration, memory, and decision-making. Restoring cervical proprioception through mobility exercises frees these resources, and cognitive function improves without any change to the brain itself. Nausea. Conflicting signals from damaged cervical proprioceptors, the vestibular system, and visual input create sensory mismatch. This mismatch triggers the same nausea response as motion sickness. Cervical mobility normalizes the proprioceptive input, reducing the conflict. Why Gentle Movement Works Better Than Rest After concussion, neck muscles guard protectively. The upper trapezius, sternocleidomastoid, scalenes, and suboccipital muscles contract to splint the injured cervical spine. This guarding is appropriate in the first 24-48 hours. Beyond that, sustained guarding creates its own problems: compressed nerves, restricted blood flow, reduced proprioceptive input, and increased headache. Immobility worsens cervical dysfunction. Avoiding neck movement allows the protective guarding to solidify into chronic stiffness. Joints stiffen, muscles shorten, and proprioceptors degrade from disuse. The nervous system interprets the restricted range as the "new normal" and guards even harder. This cycle produces progressively worse symptoms, not recovery. Gentle mobility breaks the guarding cycle. Slow, controlled neck movements signal safety to the nervous system. Each pain-free repetition teaches the brain that movement is safe, which gradually reduces the protective guarding response. Blood flow increases, proprioceptive input normalizes, and the mechanical compression on nerves and blood vessels releases. The key word is gentle. Aggressive stretching, manipulation, or forcing range of motion triggers more guarding, not less. The goal is controlled movement within comfortable range, gradually expanding that range as tolerance improves over days and weeks. Primary Cervical Mobility Exercises Start these exercises 48 hours post-concussion if tolerated. Begin with 5 repetitions per direction, 2-3 times daily. Progress to 10 repetitions as comfort allows. JME 1 Cervical rotation is the most commonly restricted movement after concussion. Rotate slowly: 3-4 seconds per direction. Note whether one side feels tighter or produces symptoms. Asymmetry confirms cervical involvement. Full, pain-free rotation is the primary recovery target. JME 14 Chin tucks restore deep cervical flexor function. These muscles stabilize the head on the neck and are consistently weakened by the whiplash mechanism. Without deep cervical flexor strength, the superficial muscles (upper trapezius, SCM) overwork to compensate, producing headache and neck tension. JME 3 Lateral cervical flexion releases the upper trapezius and scalene muscles. These muscles spasm after concussion and contribute to tension headache, restricted rotation, and nerve compression. Slow lateral movement provides controlled stretch without triggering the guarding response. JME 5 Cervical extension mobilizes the suboccipital muscles and upper cervical joints. If looking up provokes headache or dizziness, upper cervical involvement is confirmed and this movement becomes your priority. Start small and build range gradually. Start your 14-day free trial for structured post-concussion cervical mobility programs. Secondary Recovery Exercises Add these once primary cervical movements are comfortable (typically week 2-3): JME 6 Cervical flexion stretches the posterior cervical muscles that guard heavily after concussion. The suboccipital muscles and upper trapezius shorten during sustained guarding. Controlled flexion begins restoring their length and reducing their contribution to headache. JME 23 Upper cervical specific mobility targets the C0-C2 segments where cervicogenic headache originates. These segments require precise, gentle movement rather than general stretching. If headache is your primary symptom, this exercise deserves extra attention. JME 153 Thoracic extension supports cervical recovery by opening the upper back and reducing the forward head posture that stresses the cervical spine. The guarded, hunched posture of early recovery increases cervical load. Restoring thoracic extension offloads the neck. JME 150 Thoracic rotation reduces the compensatory demand on the cervical spine. When the mid-back is stiff, the neck rotates more to make up the difference. Restoring thoracic rotation distributes movement across the entire spine instead of overloading the cervical segments. Support your cervical recovery with simplmobility's guided mobility routines. When to Start and How to Progress Day 1-2: Rest from neck exercises. Gentle breathing only. Ice the base of the skull if comfortable. Day 2-5: Begin JME 1 and JME 14 only. 5 repetitions per direction, 2 times daily. Stay within pain-free range. If any exercise increases headache or dizziness by more than 2 points on a 0-10 scale, reduce intensity or stop. Week 1-2: Add JME 3 and JME 5. Increase to 3 sessions daily. Gradually expand range as tolerance improves. Week 2-4: Add thoracic exercises (JME 153, JME 150). Increase repetitions to 10. Range should be noticeably improving. Beyond 4 weeks: If cervical mobility is still restricted or symptoms persist with neck movement, seek evaluation from a physiotherapist who specializes in concussion and cervical dysfunction. Common Mistakes With Post-Concussion Neck Exercises Going too fast. Rapid neck movements trigger the vestibular system and can spike symptoms. Perform every repetition slowly: 3-4 seconds per direction. Speed is the enemy of post-concussion neck mobility. Pushing into pain. Pain triggers more guarding, which is the opposite of the goal. Work within comfortable range. The range will expand naturally as your nervous system learns the movement is safe. Forcing range extends recovery time. Only doing exercises once daily. Frequency matters more than intensity for cervical recovery. Three short sessions (2-3 minutes each) throughout the day produce better results than one longer session. The nervous system needs repeated signals of safety, not one big dose. How long until neck exercises help my concussion headache? Most patients notice headache reduction within 1-2 weeks of consistent cervical mobility work. Cervicogenic headache responds faster to treatment than brain-based concussion headache. If your headache improves with neck exercises, the cervical spine was a significant contributor. Some patients experience immediate relief after the first session. Others require 2-3 weeks of consistent work before noticing change. Should I see a chiropractor for my neck after concussion? Manual therapy for the cervical spine after concussion helps many patients. The approach matters more than the provider title. Gentle mobilization and soft tissue work are appropriate. High-velocity cervical manipulation (the "crack") is not recommended in the acute phase of concussion recovery. Seek a provider who specializes in concussion management and uses graded cervical treatment rather than aggressive adjustment. Why does my neck crack when I move it after a concussion? Cracking or popping during cervical movement after concussion comes from joint capsule stiffness. The joints have been held in a restricted position by protective muscle guarding, and as you begin moving them, gas bubbles in the synovial fluid release (cavitation) or stiff joint surfaces glide over each other. This is not harmful. It typically decreases as mobility improves over 1-2 weeks of consistent exercise. References Kennedy, E., et al. (2017). Clinical characteristics and outcomes of treatment of the cervical spine in patients with persistent post-concussion symptoms. Musculoskeletal Science and Practice, 29, 91-98. PubMed Treleaven, J. (2017). Dizziness, unsteadiness, visual disturbances, and sensorimotor control in traumatic neck pain. Journal of Orthopaedic and Sports Physical Therapy, 47(7), 492-502. PubMed