Why does cervical spondylosis cause persistent yawning?

Persistent yawning in patients with cervical spondylosis may indicate cervical vertebral misalignment, which compresses blood vessels and leads to cerebral hypoperfusion—resulting in frequent yawning. In such cases, massage therapy (tuina) can be employed for treatment. If massage proves ineffective, timely surgical intervention is necessary to achieve full recovery. During treatment, patients should avoid prolonged periods of looking down at mobile phones, as this may impede recovery.