Let's break it down.
Noci- comes from the Latin "Nocere," meaning: to injure (ever heard someone call an odor "noxious?")
-ception comes from the Latin "Capere," meaning: to receive (capisce?)
Therefore...Nociception refers to the function of the brain that receives pain.
This function occurs in "higher" species-those with complex nervous systems. Science can pinpoint this in non-human animals by certain signifiers of pain: dilated pupils, increased pulse rate (raised blood pressure), perspiration, etc.
Some people can't feel pain, this is called CIPA (congenital insensitivity to pain and anhydrosis), they seldom live past age 25, for obvious reasons.

Now what on earth is romantic about this topic?
Nociception confirms the adage that says "it's all in your head."
The brain does not differentiate between physical and emotional distress. This means that a broken arm triggers the same cognitive reaction as a broken heart.




