It's the first one is the answer
According to the research, serotonin is an inhibitory type neurotransmitter that acts in the brain regulating mood, sleep.
<h3>What is serotonin?</h3>
It is a neurotransmitter that is produced in the intestines, brain and blood platelets from the synthesis of tryptophan.
This neurotransmitter plays a relevant role in the inhibition and regulation of sleep, appetite, body temperature and anger, for example.
Therefore, we can conclude that according to the research, serotonin is an inhibitory type neurotransmitter that acts in the brain regulating mood, sleep.
Learn more about serotonin here: brainly.com/question/14482824
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It's fused into natural mixes by autotrophs and enters the dirt when living beings die.
A layer of ice on the surface keeps the water temperature warmer than the air temperature.
"Can dogs identify colors?" is a question that can be answered scientifically. but "Are dog better than cats?" cannot be answered scientifically because it will be answered with personal opinion.
