Straightening of the cervical vertebrae may cause dizziness, which is mostly related to insufficient blood supply of the vertebral artery, compression and extrusion of the nerves, and stiffening of the neck muscles.
1. Insufficient blood supply of vertebral artery: Under normal physiological conditions, the cervical spine has a certain physiological curvature, which is in line with the vascular and neural routes. When the cervical spine is straightened, the normal direction of bilateral vertebral arteries also changes, which may lead to insufficient blood supply of vertebral arteries, resulting in ischemia and hypoxia of brain tissues and dizziness.
2. Nerve compression and extrusion: When the cervical vertebrae become straight, it will produce obvious compression and extrusion on the nerves leading to the brain, and the nerve function will be affected, which may cause dizziness.
3. Stiffening of neck muscles: When the cervical vertebrae become straight, the neck muscles will be in a state of tension and contraction, resulting in increased pressure within the muscles, which may stimulate and compress the vertebral arteries bilaterally, leading to insufficient blood supply to the brain and dizziness.
Therefore, in order to avoid straightening of the cervical vertebrae, you should pay attention to avoiding long-term low head bending and choosing pillows of appropriate height.