What causes headaches, dizziness, and nausea?
Jun 24, 2025
Source: Cainiu Health
Dr. Yang Ziqi
Introduction
In general, headaches, dizziness, and nausea may be caused by excessive fatigue and staying up late, environmental factors, hypoglycemia, migraines, cervical spondylosis, and other conditions. Symptomatic management such as general treatment and medication may be needed. It is recommended to engage in moderate exercise regularly, such as jogging, swimming, or cycling, to promote blood circulation and help improve overall physical health.
Under normal circumstances, headache, dizziness, and nausea may be caused by excessive fatigue and staying up late, environmental factors, hypoglycemia, migraine, cervical spondylosis, and other conditions. Symptomatic management through general treatment and medication may be necessary. If symptoms persist, it is recommended to seek medical attention promptly and undergo appropriate treatment under a physician's guidance. Detailed explanations are as follows:
1. Excessive Fatigue and Staying Up Late
Prolonged work, study, or recreational activities can lead to excessive fatigue, resulting in insufficient rest time for brain tissue, thereby affecting normal brain function, including blood circulation and nerve conduction, which can trigger symptoms such as headache, dizziness, nausea, and may be accompanied by fatigue, difficulty concentrating, and slowed reaction time. It is recommended to ensure adequate sleep, avoid staying up late, and prioritize rest and relaxation.
2. Environmental Factors
Enclosed or poorly ventilated environments may lead to insufficient oxygen supply, which can affect normal brain function, causing headache, dizziness, nausea, and possibly accompanied by thirst, excessive sweating, and flushed skin. It is recommended to leave hot environments promptly, rest in well-ventilated areas, and replenish fluids and electrolytes appropriately.
3. Hypoglycemia
Irregular eating habits or prolonged fasting can cause a drop in blood glucose levels. During hypoglycemia, the brain's energy supply decreases, leading to impaired brain function and triggering symptoms such as headache, dizziness, and nausea. Other symptoms may include sweating, tremors, and anxiety. It is recommended to consume foods or beverages containing sugar promptly and, as directed by a physician, use medications such as glucose and sodium chloride injection, hydrocortisone tablets, and mannitol injection to alleviate symptoms.
4. Migraine
Migraine is a common neurological disorder typically associated with abnormal neuronal activity, blood vessel dilation, and inflammatory responses in the brain. These changes can cause headache, dizziness, nausea, and may also be accompanied by sensitivity to light or sound and visual disturbances. It is recommended to follow a physician's guidance in using medications such as nimodipine tablets, compound propranolol caffeine tablets, and topiramate tablets for treatment.
5. Cervical Spondylosis
Cervical spondylosis may be related to developmental spinal canal stenosis, chronic strain, and other factors. When cervical spondylosis occurs, nerve roots may be compressed or vertebral arteries obstructed, affecting blood supply and neural signal transmission to the head, resulting in symptoms such as headache, dizziness, nausea, and may also be accompanied by neck stiffness and shoulder or back pain. It is recommended to follow medical advice in using medications such as aceclofenac tablets, Jingfukang granules, and mecobalamin tablets to alleviate symptoms.
It is recommended to engage in moderate daily exercise, such as jogging, swimming, or cycling, to promote blood circulation and help enhance physical fitness.
