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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]
Irregular respirations occur when injury to parts of the brain interfere with the respiratory drive. Biot's respiration, in which breathing is rapid for a period and then absent for a period, occurs because of injury to the cerebral hemispheres or diencephalon. [6] Hyperventilation can occur when the brain stem or tegmentum is damaged. [6]
Baseline levels of insulin do not signal muscle and fat cells to absorb glucose. When glucose levels are elevated, the pancreas responds by releasing insulin. Blood sugar will then rapidly drop. This can progress to type 2 diabetes. [2] Sleep variations, both in quantity and quality, may affect metabolic regulation in type 2 diabetes.
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 ...
Photoreceptors are the cells that convert light to electric signals that travel to the brain so you can see. Rod cells, or photoreceptors that respond best to dim light, are located mostly in the ...
Sleep apnea (or sleep apnoea in British English; /æpˈniːə/) is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep. Each pause in breathing, called an apnea, can last for several seconds to several minutes, and may occur 5 to 30 times or more in an hour. [4]
REM sleep deprivation causes an increase in noradrenaline (which incidentally causes the person sleep deprived to be stressed) due to the neurons in the locus coeruleus producing it not ceasing to do so, which causes an increase in the activity of the Na⁺/K⁺-ATPase pump, which itself activates the intrinsic pathway of apoptosis [41] and ...
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.