Let's get creepy:
A lot of groups that have this idea are pretty specific about its physicality, which is unusual for so many different groups to agree on something so bizarre. It's always the process of making something "go up", and though it's usually metaphysically called an energy, they specifically use "fluid" to describe the essence.
The idea is old. Now they can use newer medical and scientific instruments to see if any of that might be true, but how did they back years ago, even to create a story that's so specific? I understand that nonsense gets passed down readily, but not like this, and not so widespread among so many diverse groups and ethnicities.
So...like...they must have had to sacrifice people in the process of transmuting an orgasm by slicing them in half, cutting their spine open, and seeing unusual fluid going either up or down...and these people they sacrificed probably were willing to do it...and if true...this is ridiculous world history. If false, I honestly have no idea how so many groups in different areas at different times talk about sending love juice up the spine with complete seriousness like it's life-or-death to some of them.
I've had a lot of coffee and don't feel a thing. Never buy hazelnut coffee, unless you know it's not weak, cause damn. I'm on my 3rd cup of 4 coffee-pot cups, that's 12 coffee-pot cups, that's the entire pot in the past 6 hours. And I don't feel a thing really when 1 4 cofee-pot cups of regular coffee usually does me baddd.