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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. Some causes of heavy-headedness can be tough to get rid of and can last a long period of time, however most can be treated.
Or you may have balance issues. Or perhaps you’re taking medications that affect blood flow to the brain. Not all bouts of dizziness are alike either. Some people feel like they’re going to ...
Studies have shown that inhaling CO2 can cause fear in people who do not have any prior history of panic attacks. [38] This information has allowed scientists to suggest that panic attacks could be caused by our brain's inability to stop alarm signals that make us feel like we're suffocating.
Feeling some dizziness? Experts say vertigo is serious and can be a sign of COVID-19. Here’s what to know about the symptom and when to see a doctor.
Problems with balance can occur when there is a disruption in any of the vestibular, visual, or proprioceptive systems. Abnormalities in balance function may indicate a wide range of pathologies from causes like inner ear disorders, low blood pressure, brain tumors, and brain injury including stroke. [citation needed]
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Norepinephrine is a huge player in fear memory formation. Recent studies have demonstrated that the blockade of norepinephrine β-adrenergic receptors (β-ARs) in the lateral nucleus of the amygdala interferes with the acquisition of fear learning when given pretraining stimuli but has no effect when applied posttraining or before memory retrieval.
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]