What is the evolutionary purpose of yawning?

By excessive, I mean 2-3 yawns a minute. It also seems to happen only when I am doing pursed lip breathing, even though my 02 is over 95. Oct 10, 2024 ... ... yawning, or hyperventilation culminating in a transient loss of ... This condition of chronic orthostatic intolerance is often considered ... As we become more experienced with the long-term use of selective serotonin reuptake inhibitors (SSRIs), more subtle side-effects may become evident. Clinicians ... Read about excessive daytime sleepiness (hypersomnia), a condition that causes you to feel very sleepy during the day, even if you had a good night's sleep. Apr 14, 2025 ... Excessive yawning and nodding off in dull work meetings at work can be serious signs of sleepiness, experts say. Basak Gurbuz Derma/Moment RF/ ... Abstract. Background: Pathological yawning is a compulsive, frequent, repetitive yawning triggered by a specific reason besides fatigue or boredom. It may be ... Mar 27, 2017 ... A lot of people believe yawning is a sign of boredom, so in many situations, it's considered socially unacceptable. ... Excessive yawning can be ... Sep 19, 2011 ... Though considered a mark of boredom or fatigue, yawning might also ... frequent yawning and thermoregulatory dysfunction. These results ... throbbing headache; sensitivity to light, noise and smell; nausea (feeling sick); vomiting (being sick) ; feeling tired; excessive yawning; food cravings ... Oct 24, 2012 ... It seems that absence of yawning bouts in a sleepy patient may predict the presence of sleep apnea syndrome as a cause of the excessive daytime sleepiness.