The Cranio-cervical junction (CCJ) contains the most complex, vital and vulnerable joints in the human body. The CCJ is a collective term that refers to the area where your head and neck connect and is a transitional area between the mobile head and relatively rigid spinal column. The brainstem, spinal cord, and vertebral arteries pass through the CCJ making it both the neurologic switch and the primary pathway for the exchange of fluids between the brain and body. The key vertebrae in the CCJ is the atlas or 1st cervical vertebrae. When the atlas becomes misaligned it can increase tension on the spinal cord, spinal nerves, muscles, ligaments, veins and arteries in the CCJ and can disrupt the proper function of the nerve, muscular, vestibular, vascular, and cerebral spinal fluid systems. Disfunction at the CCJ can have serious neurologic & neuromotor consequences. It’s often found to be can be a cause of whiplash and post-concussion symptoms, headaches, and neck pain. The CCJ is a vital & vulnerable region and therefore merits special consideration for care and treatment. Treatment is very gentle and specific and does not involve twisting or cracking the neck.