A tilt of the head will be dizzy, first of all, consider the cervical spine caused by bad, now many people are faced with cervical spondylosis, because of prolonged sedentary, head down to read and study and use the computer to play cell phones, etc., will cause chronic strain on the cervical spine, long-term down will be quantitative change caused by qualitative change, causing cervical disc protrusion, compression of nerves and blood vessels, and then the symptoms of dizziness, tilt the head or head down and other actions will aggravate dizziness. Next, consider the cause of otoliths. The dizziness caused by otoliths is related to the change of body position, and the dizziness is often very obvious because of a certain movement, which is due to the vestibular disorder of the ear caused by otoliths, and then the dizziness appears. All normal people have otoliths. If the otoliths are dislodged into an abnormal environment, the dizziness will worsen as the fluid flows in the semicircular canal and when the patient’s head position changes, especially when the dizziness is obvious when the head is lowered or tilted, and it will also be accompanied by nausea and vomiting.