The terms "Abracadabra" and "Hocus Pocus" have no established or agreed upon origin? Scholars disagree, so for now it's like the words just appeared out of thin air!
An erection is a vascular process where the corpora cavernosa fill with blood, increasing in length and thickness, often initiated by the parasympathetic nervous system.
Your gut is sometimes called the “second brain”. The gut has 100–500 million neurons, forming the enteric nervous system that controls digestion independently of the brain.
