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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 .
Astigmatism, a disorder that affects how the eyes focus light, can be exacerbated at night. Blurry vision and headaches are symptoms of astigmatism. Why astigmatism causes blurry vision ...
One paper suggested that in rare cases, fluorescent lighting can also induce depersonalization and derealization; subsequently, it can worsen depersonalization disorder symptoms. [27] The charity Migraine Action Association reported concerns from members that CFL bulbs can cause migraines, [28] and there are many anecdotal reports of such ...
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.
"Avoiding light at night and seeking light during the day may be a simple and effective, non-pharmacological means of broadly improving mental health," the researchers concluded. What experts think
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.
Light-headed; Dizzy Dizzy – about to black out; Dizzy – with the room spinning around me; My mouth is dry; Nauseated; Sick like I have the flu; like I have to vomit; Short of breath; Sleepy; Sweaty; Thirsty; Tired; Weak; I can't: Breathe normally; Hear normally: losing hearing; sounds are too loud; ringing or hissing in my ears; Move one ...
Sight: crowded or cluttered spaces, bright lights, strobing lights, or environments with much movement such as crowds or frequent scene changes on television. Smell and taste: strong aromas or spicy foods. Touch: tactile sensations such as being touched by another person or the feel of cloth on skin. [6] Vestibular: such as dizziness or motion ...