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What receptors cause you to yawn ???

Dr. Beat

Bluelighter
Joined
Apr 1, 2002
Messages
511
Location
Melbourne
I have read that D3 agonists increase yawning, and D2 decrease yawning.

I have also read somewhere that it is acytlecloline that is main cause of yawning.

Does seratonin cause yawning, because if I take any SSRI, i start yawning like crazy.

Is there any drug I can take that will decrease yawning ?
 
ssris usually increase the responsibility of d3-receptors.
maybe these dopamine receptors are actually responsible for this nasty side reaction of many antidepressants.
 
Yawning is a response to having a low level of oxygen (or is it a high level of CO2). Think it has something to do with expelling as much of the tidal volume of the lungs as possible (to be replaced by fresh inspired air)
 
morphiquet said:
ssris usually increase the responsibility of d3-receptors.
maybe these dopamine receptors are actually responsible for this nasty side reaction of many antidepressants.

about 8 years ago i went clubbing on Effexor and alcohol about 10 times, which made me very high, but i used to get the hugest yawns on it for hours, so i stopped taking that combo.

about 6 years ago i took 40mg of prozac once a month for 3 years (postloading after MDMA) and it made me yawn ALOT, and even though i have had NO ssri's the last 3 years, i STILL yawn so much, probably about 50-100 times a day. I also have very high seratonin levels nowadays. i think my brain was re-wired by the SSRI's.

it is good having lots of seratonin, cause i am very happy and relaxed person most of the time, but i yawn so much that my throat muscles get very tight, so makes my head naturally lean forward alot, so it puts strain on my neck muscles, so i have constant sore neck muscles.

opiates and amphetamine stop me yawning, but i do not want to take those every day.

(if i WALK i yawn - so a one hour walk is about 20-30 yawns)

i would love a drug that stopped me yawning !
 
fastandbulbous said:
Yawning is a response to having a low level of oxygen (or is it a high level of CO2). Think it has something to do with expelling as much of the tidal volume of the lungs as possible (to be replaced by fresh inspired air)

I have heard this said, and refuted just as often by scientists. I wonder what it really is. It doesn't really seem to be that though, as I yawn after I've been breating plenty... I do it when I'm tired.
 
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