Dizziness at the seaside: possible causes
Mar 17, 2025
Source: Cainiu Health
Dr. Lv Zhiqin
Introduction
In general, dizziness at the seaside may be caused by factors such as ultraviolet radiation, sea breeze irritation, hypoglycemia, motion sickness, or benign paroxysmal positional vertigo. Symptomatic management, including general treatment and medication, may be necessary. It is recommended to promptly find a safe and comfortable place to sit or lie down, such as a beach chair or flat area on the sand, to prevent falls and injuries.
Under normal circumstances, dizziness at the seaside may be caused by ultraviolet radiation, sea breeze irritation, hypoglycemia, motion sickness, or benign paroxysmal positional vertigo. Symptomatic management through general treatment and medication may be necessary. If discomfort persists, it is recommended to seek medical attention promptly and undergo appropriate treatment under a doctor's guidance. Detailed explanations are as follows:
1. Ultraviolet Radiation
Prolonged exposure to intense sunlight, especially strong ultraviolet radiation at the seaside, can cause excessive perspiration, leading to dehydration and electrolyte imbalance, which may subsequently cause dizziness. It is recommended to avoid prolonged exposure to strong sunlight. When going outdoors, apply sunscreen and wear a sun hat and sunglasses to reduce direct UV exposure.
2. Sea Breeze Irritation
Sea breeze contains high levels of salt and negative ions, which may irritate the nasal passages and throat, causing respiratory discomfort and subsequent dizziness, possibly accompanied by sneezing, coughing, and skin itching. It is advisable to avoid prolonged exposure to direct sea breeze. Wearing a mask and scarf can help protect the mouth, nose, and neck.
3. Hypoglycemia
Physical activities at the seaside consume significant energy, and prolonged physical exertion combined with insufficient food intake can lead to decreased blood glucose levels, causing hypoglycemia. When glucose supply to the brain is inadequate, dizziness may occur, potentially accompanied by sweating, trembling, and hunger. It is recommended to use medications such as glucose sodium chloride injection, hydrocortisone tablets, and mannitol injection as directed by a physician to alleviate symptoms.
4. Motion Sickness
Motion sickness results from mechanical stimulation of the inner ear labyrinth, causing vestibular dysfunction. Riding in vehicles or boats near the seaside, which involves jolting or swaying, can trigger motion sickness, leading to dizziness, often accompanied by nausea, vomiting, and pallor. It is recommended to use medications such as betahistine hydrochloride, chlorpromazine hydrochloride tablets, and diazepam tablets under medical supervision for treatment.
5. Benign Paroxysmal Positional Vertigo (BPPV)
Otolithiasis (or BPPV) is a peripheral vestibular disorder characterized by brief episodes of vertigo and specific nystagmus triggered by changes in head position. During seaside activities, alterations in head position may trigger otolithiasis, resulting in dizziness, possibly accompanied by nystagmus, nausea, and vomiting. It is recommended to use medications such as promethazine hydrochloride tablets and ginkgo biloba extract under medical guidance to alleviate symptoms.
When experiencing dizziness at the seaside, it is advisable to quickly find a safe and comfortable place to sit or lie down, such as on a beach chair or flat sandy area, to prevent falls and injuries.
