I need a volunteer

[Fidel_Castronaut]

When you fall in love with someone, your extracellular dopamine levels increase. This is translated in a heart rate increase, vasoconstriction, hyper-focusing and many other side effects that are observed with dopamine re-uptake inhibitors.
The calming effect of having someone you love to rely on and belong to is of an opioid type and cannabinoid type. This effect usually follows periods of dopamine driven sexual excitement. Why would you look at the heart, when its merely responding to a change in brain chemistry? And when there's so many other side effects to it.
Ironically, when someone is really in deep love, when taking a lie detector test, the results would come back inconclusive due to heart rate changes lol.

The spinal cord in a way is like a pipe

Just like the internet is a series of tubes?

and along this pipe there are many glands in charge for a particular factor in our body-mind and spirit.

That sounds hot!

For the time being all you got are these medical terms that do not really make you understand much.

Brilliant. Enrico, do you remember when you lied when you said you were nurse?