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Sleep spindles of slow wave sleep are generated as an interaction of the thalamic reticular nucleus with thalamic relay neurons. [71] The sleep spindles have been predicted to play a role in disconnecting the cortex from sensory input and allowing entry of calcium ions into cells, thus potentially playing a role in plasticity. [72] [73]
Factors that may induce or sustain [2] hyperventilation include: physiological stress, anxiety or panic disorder, high altitude, head injury, stroke, respiratory disorders such as asthma, pneumonia, or hyperventilation syndrome, [5] cardiovascular problems such as pulmonary embolisms, anemia, an incorrectly calibrated medical respirator, [1] [3 ...
These breathing irregularities are not random, but correspond to bursts of eye movements. This breathing pattern is not controlled by the chemoreceptors, but is due to the activation of behavioral respiratory control system by REM sleep processes. Quantitative measure of airflow is quite variable in this sleep stage and has been shown to be ...
In addition to the redistribution of blood in the body, most cases of dyspnea are accompanied by an increase in the overall work of breathing, often caused by abnormal pulmonary mechanisms. [ 5 ] The perception of dyspnea is theorized to be a complicated connection between peripheral receptors, neural pathways , and the central nervous system .
Intracerebral B-cell lymphoma represents less than 1% of all primary malignant tumors of the central nervous system. [6] [1] [3] Infiltration of lymphoma cells into the pons and medulla is the most frequently reported cause of CNH, accounting for half of all CNH-inducing brain tumors, despite its considerable rarity. It has been suggested that ...
Snorkel breathing is limited to shallow depths just below the surface due to the effort required during inhalation to overcome the hydrostatic pressure on the chest. [17] Hydrostatic pressure on the surface of the body due to head-out immersion in water causes negative pressure breathing which shifts blood into the intrathoracic circulation. [16]
Why are we so drawn to 'rotting'? “Let’s face it—bed rotting or brain rotting is not a style of lazy living. It’s about escape,” psychologist Caitlin Slavens tells Yahoo Life.
Catathrenia or nocturnal groaning is a sleep-related breathing disorder, consisting of end-inspiratory apnea (breath holding) and expiratory groaning during sleep.It describes a rare condition characterized by monotonous, irregular groans while sleeping. [1]