Why do I get dizzy in summer?

Dizziness, also known as vertigo, is a subjective sensory abnormality. It can be divided into two categories: One is rotational vertigo, which is mostly caused by dysfunction of the vestibular nervous system and cerebellum. It mainly involves the feeling of falling over, and the feeling that oneself is shaking or the scene is rotating. The second is general dizziness, which is mostly caused by certain systemic diseases and is dominated by dizziness and lightheadedness.

Classification and common diseases

Dizziness is a common symptom, not an independent disease. Therefore, we can classify and describe the diseases that cause dizziness, so that everyone can have a deeper understanding of "dizziness".

1． Rotational vertigo can be divided into two categories: peripheral vertigo and central vertigo according to its cause.

(1) Peripheral vertigo: refers to vertigo caused by lesions of the inner ear labyrinth or vestibular nerve. Commonly seen in Meniere's disease (formerly translated as Meniere's disease), labyrinthitis, drug-induced vertigo (caused by taking drugs such as streptomycin or gentamicin) and vestibular neuritis, etc.

(2) Central vertigo: refers to vertigo caused by lesions of the brainstem, cerebellum, cerebrum and spinal cord. Commonly seen in vertebral-basilar artery insufficiency, intracranial tumors, intracranial infection, multiple sclerosis, vertigo epilepsy and traumatic vertigo.

2． General vertigo

(1) Cardiac vertigo: common in arrhythmia, cardiac insufficiency, etc.

(2) Pulmonary vertigo: It can be seen in pulmonary insufficiency caused by various reasons.

(3) Ophthalmogenic vertigo: common in refractive error, fundus arteriosclerosis, bleeding and ophthalmoplegia.

(4) Blood pressure dizziness: High blood pressure or low blood pressure can cause dizziness.

(5) Others: Anemia, cervical spondylosis, acute fever, gastroenteritis, endocrine disorders and neurosis can cause dizziness

1. Anemia: If the elderly have dizziness, fatigue, or pale complexion, they should go to the hospital for a check-up to see if they are anemic. If the elderly do not pay attention to nutrition and health care, they are prone to anemia. In addition, elderly patients with indigestion, peptic ulcers, gastrointestinal bleeding, and chronic inflammatory diseases may develop secondary anemia. 2． High blood viscosity, high blood lipids, thrombocythemia, etc. can cause high blood viscosity and slow blood flow, resulting in insufficient blood supply to the brain and causing symptoms such as fatigue, dizziness, and weakness. There are many reasons for hyperlipidemia, the most important of which is an unreasonable diet. 3． Patients with cerebral arteriosclerosis feel dizzy and often suffer from insomnia, tinnitus, emotional instability, forgetfulness, and numbness in their limbs. Cerebral arteriosclerosis reduces the inner diameter of blood vessels and decreases blood flow in the brain, resulting in insufficient blood and oxygen supply to the brain, causing dizziness. 4． Cervical spondylosis often causes neck tightness, limited flexibility, occasional pain, numbness, coldness, and heaviness in the fingers. Hyperplasia of cervical vertebrae squeezes the vertebral arteries in the neck, causing insufficient blood supply to the brain, which is the main cause of dizziness caused by this disease. 5． Hypertension: In addition to dizziness, patients with hypertension are often accompanied by discomfort such as head fullness, palpitation, irritability, tinnitus, and insomnia. 6. Heart disease: In the early stages of coronary heart disease, some people may experience headaches, dizziness, weakness in limbs, and difficulty concentrating. Dizziness is mainly caused by atherosclerosis in the coronary arteries of the heart, resulting in insufficient blood supply. 1. The best solution to dizziness is prevention.

The elderly should regularly undergo blood pressure, heart sounds, heart rhythm, as well as routine blood tests, blood lipids, blood viscosity, electroencephalography, cerebral blood flow, and neck x-rays to prevent problems before they occur