Why does dizziness occur in the left brain but not the right brain?

　　Under normal circumstances, dizziness in the left brain but not the right may be caused by stress and anxiety, lifestyle habits, hypoglycemia, cervical spondylosis, insufficient cerebral blood supply, and other factors. Symptomatic treatment such as general therapy and medication may be needed. Once discomfort occurs, it is important to seek medical examination and treatment early. Detailed analysis is as follows:

　　1. Stress and Anxiety

　　Stress and anxiety can trigger the release of stress hormones such as adrenaline and cortisol, which may affect neural transmission and blood circulation in the brain, leading to discomfort in localized brain regions. Symptoms may include palpitations, sweating, and insomnia. It is recommended to learn stress management techniques such as deep breathing, meditation, or yoga.

　　2. Lifestyle Habits

　　Imbalanced head movement or posture, such as consistently tilting the head to the left while working or resting, may cause temporary changes in blood circulation in the left side of the brain, resulting in a sensation of dizziness. This may be accompanied by neck muscle tension or pain. It is recommended to improve sitting posture and sleeping position, perform regular head and neck relaxation exercises, and use heat or cold compresses to relieve neck muscle tension.

　　3. Hypoglycemia

　　Hypoglycemia may be caused by an improper diet or malnutrition, potentially leading to symptoms such as dizziness on the left side of the brain but not on the right, or muscle twitching. It is recommended to immediately replenish sugar and, as directed by a physician, use medications such as glucose sodium chloride injection, hydrocortisone tablets, or mannitol injection to alleviate symptoms.

　　4. Cervical Spondylosis

　　Cervical spondylosis may be related to congenital cervical spinal stenosis, chronic strain, and other factors. In cervical spondylosis, intervertebral disc herniation or bone spurs may compress blood vessels or nerve roots in the neck, affecting blood supply to the left side of the brain and causing dizziness. Symptoms may include neck stiffness and arm numbness. It is recommended to follow a physician's guidance in using medications such as chlorzoxazone tablets, eperisone hydrochloride tablets, or sodium naproxen tablets for treatment.

　　5. Insufficient Cerebral Blood Supply

　　Insufficient cerebral blood supply may be caused by factors such as arteriosclerosis or vascular stenosis. When the brain's blood supply is inadequate, it may impair normal brain function, causing dizziness. Due to differences in function and vascular distribution between the left and right hemispheres of the brain, dizziness may occur on one side while the other remains unaffected. It is recommended to follow medical advice in using medications such as aspirin enteric-coated tablets, clopidogrel bisulfate tablets, or rosuvastatin calcium tablets to alleviate symptoms.

　　It is recommended to perform simple head movements in daily life, such as turning the head left and right or nodding up and down, which can help promote blood circulation in the head. However, exercise should be moderate to avoid exacerbating symptoms through strenuous activity.