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Dizziness is broken down into four main subtypes: vertigo (~25–50%), disequilibrium (less than ~15%), presyncope (less than ~15%), and nonspecific dizziness (~10%). [5] Vertigo is the sensation of spinning or having one's surroundings spin about them. Many people find vertigo very disturbing and often report associated nausea and vomiting. [6]
[1] It is a disorientation-, vertigo-, and nausea-inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves. [2] [3] The effects are similar to seizures caused by epilepsy (in particular photosensitive epilepsy), but are not restricted to people with histories of epilepsy.
Other simple remedies include avoiding sudden changes in posture when sitting or lying and avoiding bright lights. Several essential electrolytes are excreted when the body perspires. When people experience unusual or extreme heat for a long time, sweating excessively can cause a lack of some electrolytes, which in turn can cause lightheadedness.
Pregnancy, certain medications and long-term bed rest can also cause a sudden drop in blood pressure. Related: It's More Than Just Dizziness! Here Are the Telltale Symptoms of Vertigo—and the ...
It causes symptoms like diarrhea, nausea, vomiting, and cramps, notes Dr. Boxer. ... but severe dehydration may need medical attention.” ... such as sharp, sudden pain, dizziness, or fainting.
A medical event will also likely accompany other symptoms, like hot flashes, nausea, sudden sweating, shortness of breath, tremors, or heart palpitations, she adds. Impending doom may be a symptom ...
More severe causes should also be considered, [9] especially if other problems such as weakness, headache, double vision, or numbness occur. [2] Dizziness affects approximately 20–40% of people at some point in time, while about 7.5–10% have vertigo. [3] About 5% have vertigo in a given year. [10]
What causes vertigo and dizziness? “Dizziness is generally a more neurological cause or a potential cardiac cause. For example, it could be a blood flow issue or stenosis of a carotid artery ...
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