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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]
Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." [ 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 .
Central vertigo is less common and is caused by a problem in the brain. It might be in the brain stem. It could also be in the back part of the brain, called the cerebellum.
Heavy-headedness is the feeling of faintness, dizziness, or feeling of floating, wooziness. [1] [2] [3] Individuals may feel as though their head is heavy; also feel as though the room is moving/spinning also known as vertigo.
For example, after a 4.8 magnitude earthquake hit New Jersey in April, people in the affected areas reported symptoms including dizziness, vertigo, nausea and just generally feeling a bit off.
Nearly 20% of American adults reported having an anxiety disorder in the past year — and many are more likely to feel uneasy and anxious as the sun sets. Experts reveal the common triggers.
Vertigo is a condition in which a person has the sensation that they are moving, or that objects around them are moving, when they are not. [1]
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