What is the origins of love spells using bodily fluids?

Voodoo has been know to use excretions from the individual casting or performing a particular spell but I do not recommend trying to do it yourself without further knowledge as you may just cause harm to yourself and others if you were to do it wrong. . Voodoo and Hoodoo is very real and it takes practitioners years to know how to conjure spells. They also cam have repercussions and could back fire. Take care.