Is yawning linked to biochemistry? Can yawning be a sign of an acquired condition?

Yawning is a clinical sign of the activity of various supra- and infratentorial brain regions including the putative brainstem motor pattern, ... They do know that normal occasional yawns can be due to drowsiness that may be related to a reduction in oxygen in the brain or lungs. Excessive yawning is ... Yawning excessively is a condition where a person yawns more often than normal. This condition is caused by various reasons, such as boredom, sleepiness, or ... Jun 15, 1987 ... Some researchers have proposed psychological causes of yawning, saying that it is an expression of mood, like laughing or crying. In this regard ... ... cause of the intracranial hypertension. I have an extensive article on ... The Big Yawning: Pathological Yawning as a Symptom of Neuromyelitis Optica Spectrum ... Aug 16, 2024 ... ... causes of yawning that may apply to exercise. First, an important note: Yawning during a workout is what's called spontaneous yawning, says ... The localized circulatory changes resulting from this action pattern have led researchers to hypothesize that yawns may function to cool the brain (Gallup and ... It has long been thought (and is still commonly misconstrued) that the function of a yawn is to increase O2 levels in the blood. However, breathing increased ... Nov 8, 2023 ... Why Do You Yawn? · During periods of boredom, yawning may help keep the brain awake and stimulate heart rate. · Yawning may aid in brain ... Apr 14, 2014 ... We usually think of yawning as a signal of sleepiness or boredom—one of the reasons Sasha Obama's yawn seemed so inappropriate. Indeed, fatigue ...