Humans don't have that particular neuropeptide or its receptor sites.
Now glowing lines connected various yellow and orange receptor sites.
They are then absorbed into the blood at receptor sites in the small intestine.
It is the first time that two kinds of human viruses have been shown to share the same receptor site on a cell.
So our brains evolving over fifty million years have these receptor sites.
The brain is equipped to be altered by these receptor sites.
So we can see these receptor sites overwhelm the mind.
A neurotransmitter has only a brief stay at its receptor site.
That would allow numerous substances to be tested to see if they could block the receptor site.
It's his receptor sites, in his brain, at least I think so.